NHTSA ID Number: 10154171
Manufacturer Communication Number: SC-18-90-01
TSB/Document Date: 2019-03-04
Summary
Reissue with more information: SC-18-90-01 Key Fob Function
Service Communication
SC-18-90-01
MODEL: Karma
Revero
TITLE: Key Fob Function
DATE: May 2018
Revised January 2019
PRIORITY: On Complaint
APPLICABILITY: All Karma Revero
MARKET REGION: North America
PURPOSE: Functional description of the Key Fob to verify proper operation
This key fob function document will aid the technician to verify key fob operation.
The vehicle security system, door locks, and ignition are controlled by the key fob (fig. 1). The
doors and trunk can be locked or unlocked using the key fob. The key fob is part of the
immobilizer system. It operates in the manner described below. You can configure the vehicle’s lights
and horn to provide feedback on locking, unlocking, security system and mirrors.
Each Revero is supplied with two key fobs and separate mechanical key blades.
When Presented with key fob concerns
consider the following:
I. Using the Key Fob - How to (page 2)
II. Verifying Key Fob Functions
III. Key Fob Antennas
IV. In Car Settings
V. Key Fob Battery
fig 1
Karma Automotive Bulletins and service documents are intended for use by experienced and trained Technicians. If you lack the skills, tools, equipment
and a suitable workshop for any procedure described in this document, we suggest you leave such repairs to a Karma retailer and service provider. See
your service provider for advice on whether your vehicle may benefit from the information contained within this document. The information contained in the
Karma Bulletin is accurate at the date of publication. However, Karma Automotive regularly updates technical information. Please check with your Karma
Automotive Retailer and Karma Automotive service provider that the bulletin you intend to use contains the latest available information.
Page 1 of 11
Revised: January 2019
Service Communication
SC-18-90-01
MODEL: Karma Revero
TITLE: Key Fob Function
DATE: May 2018
Revised January 2019
I. USING THE KEY FOB - How to:
The buttons on the key fob operate as follows (fig 1a):
Button 1: Key Fob Lock: Remote Keyless Entry (“RKE”)
- Press once (1x) to lock the vehicle and activate the vehicle’s security
system (anti-theft alarm is armed)
The vehicle’s lights will briefly flash to confirm system is active.
Audible and Visual feedback is dependent on the selection
made by the user in the Settings Menu on
the Touch Panel Interface (“TPI”)
Passive Lock:
- When exiting the vehicle, press the switch on the exterior door
handle and close the door. All doors should lock and the parking
lights should flash once, indicating the security system is active
fig. 1a
Note: All other doors must be closed when Passive Locking the vehicle
Passive Lock can only be conducted using the front doors
A Key Fob must be within 1.5 meters of the outside rearview mirror
Remote Cabin Pre-Conditioning (“CPC”): First make sure these settings are active in the touch panel,
the following pages have a description on set up.
- Press lock once (1x), then press and hold the lock button for two (2) seconds to activate the remote
preconditioning feature. The lights will flash twice; one short and one long, to signal successful
activation. The power button will alternate green and amber when CPC is active.
Button 2: Key Fob Unlock: Remote Keyless Entry (“RKE”)
- Press unlock button once (1x) to unlock the driver door. Press a second time to unlock all doors
- The park lights should flash and the mirrors may unfold, if configured, to confirm unlock this is
dependent on the user selection in the Settings menu on the TPI
Karma Automotive Bulletins and service documents are intended for use by experienced and trained Technicians. If you lack the skills, tools, equipment
and a suitable workshop for any procedure described in this document, we suggest you leave such repairs to a Karma retailer and service provider. See
your service provider for advice on whether your vehicle may benefit from the information contained within this document. The information contained in the
Karma Bulletin is accurate at the date of publication. However, Karma Automotive regularly updates technical information. Please check with your Karma
Automotive Retailer and Karma Automotive service provider that the bulletin you intend to use contains the latest available information.
Page 2 of 11
Revised: January 2019
Service Communication
SC-18-90-01
MODEL: Karma Revero
TITLE: Key Fob Function
DATE: May 2018
Revised January 2019
Passive Unlock:
- When a programmed key fob is in your possession within the specified range (1.5m), activate an
exterior front door handle. Dependent on your vehicle settings, either a single door, the entire side of
the vehicle, or all doors will open (if a key is seen as inside the vehicle it will not be able to authorize
a passive unlock request, until it is no longer “seen” (or reported by the vehicle) as inside the
passenger compartment.
- The park lights should flash (again dependent on the User settings in the Settings menu in the TPI).
Button 3: Trunk Release:
- Press and hold the trunk release button for three (3) seconds to release the trunk
With a new full capacity and properly inserted battery you can
expect the following operation:
- Remote Keyless Entry, trunk opening, and CPC actions
are available within 10 meters (minimum)
- Passive Entry is available to activate between 1 and 2 meters
from front doors of the vehicle
- Vehicle Start will operate with the key fob inside
passenger compartment
fig 1b
It is not necessary to point the key fob at the vehicle (fig. 3a) but you must be within operating range.
The operating range will vary according to the condition of the key fob battery and other physical
factors. If the vehicle cannot be locked or unlocked using the buttons on the key fob, you may
need to change the key fob battery.
Karma Automotive Bulletins and service documents are intended for use by experienced and trained Technicians. If you lack the skills, tools, equipment
and a suitable workshop for any procedure described in this document, we suggest you leave such repairs to a Karma retailer and service provider. See
your service provider for advice on whether your vehicle may benefit from the information contained within this document. The information contained in the
Karma Bulletin is accurate at the date of publication. However, Karma Automotive regularly updates technical information. Please check with your Karma
Automotive Retailer and Karma Automotive service provider that the bulletin you intend to use contains the latest available information.
Page 3 of 11
Revised: January 2019
Service Communication
SC-18-90-01
MODEL: Karma Revero
TITLE: Key Fob Function
DATE: May 2018
Revised January 2019
II. Verifying Key Fob Functions
Exercise typical Use Case Scenarios:
Test at the specified distances from every side of the vehicle for remote entry and trunk opening.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
Starting with the vehicle in “OFF_AWAKE”, all doors closed, and the key fob outside,
45 seconds before this state expires. Lock the vehicle as soon as you exit.
Press button 1, the lock button, then verify the vehicle locks
Allow vehicle to sleep (power vehicle off and wait seven (7) minutes
Passive unlock the vehicle, with assistance place the key 10 meters away and attempt to
passively open the locked vehicle, for every attempt bring the fob closer by a meter until the
specified distance of 1 - 2 meters.
Open driver door, enter vehicle
Place key upright in front cup holder
Close all doors
Turn vehicle on (Karma start button turns green)
Open and Close door
Turn vehicle off
Exit vehicle with key
Passive Lock vehicle
a.
Key outside of vehicle (within 1.5m of outside rear view mirror), all doors
closed except for the one where passive locking will be requested (must be a front door)
b.
While the door is open, press the exterior door button at the handle once
c.
Close door
d.
Move key fob 15 meters or more from the vehicle, confirm the vehicle is locked
Allow vehicle to sleep (power vehicle off and wait seven (7) minutes
RKE unlock vehicle
Open driver door
Place key upright in front cup holder
Turn vehicle on (Karma start button turns green)
Close all doors
Turn the vehicle off
Exit vehicle with key
Press button 1, the lock button, then verify the vehicle locks
Allow vehicle to sleep (power vehicle off and wait seven (7) minutes)
Open the Trunk using the key fob, press and hold button 3 for three (3) or more seconds
Karma Automotive Bulletins and service documents are intended for use by experienced and trained Technicians. If you lack the skills, tools, equipment
and a suitable workshop for any procedure described in this document, we suggest you leave such repairs to a Karma retailer and service provider. See
your service provider for advice on whether your vehicle may benefit from the information contained within this document. The information contained in the
Karma Bulletin is accurate at the date of publication. However, Karma Automotive regularly updates technical information. Please check with your Karma
Automotive Retailer and Karma Automotive service provider that the bulletin you intend to use contains the latest available information.
Page 4 of 11
Revised: January 2019
Service Communication
SC-18-90-01
MODEL: Karma Revero
TITLE: Key Fob Function
DATE: May 2018
Revised January 2019
Verify the Key Fob Signal by checking the Received Signal Strength Indicator (“RSSI”):
RSSI value provides a means of identifying the signal strength received by the vehicle. It allows the
person conducting the troubleshooting exercise to assess the noise floor and compare it to the received
signal. Comparatively a VCM without an RKE antenna connected will show a lower RSSI value compared to when an RKE antenna is connected. The RSSI also allows to monitor when an RKE signal has
been received
Connect KarmaSync:
Key Fob activation (and key fob ID, 1, 2, or 3.) is available to view in Live Data.
- Go to “Live Data” (Module Diagnosis -> Body ->Vehicle Control Module Security -> Measurement
Values) to visualize as the key fob signal is sent, as measured in mV.
- Observe UHF RSSI Value (The UHF RSSI Value should increase each time the key button is
pressed)
- Test at multiple locations outside, and inside of the vehicle and record results.
The value will influenced by exterior factors like ex. metal structures, objects near the vehicle.
This step can to confirm that a key is working properly.
While there is no pass/fail value but if there is significant change in the value then system is working
correctly that this time (see fig. 2a below for value location with in the KarmaSync live data screen).
Continue testing in the following pages.
fig 2a
Karma Automotive Bulletins and service documents are intended for use by experienced and trained Technicians. If you lack the skills, tools, equipment
and a suitable workshop for any procedure described in this document, we suggest you leave such repairs to a Karma retailer and service provider. See
your service provider for advice on whether your vehicle may benefit from the information contained within this document. The information contained in the
Karma Bulletin is accurate at the date of publication. However, Karma Automotive regularly updates technical information. Please check with your Karma
Automotive Retailer and Karma Automotive service provider that the bulletin you intend to use contains the latest available information.
Page 5 of 11
Revised: January 2019
Service Communication
SC-18-90-01
MODEL: Karma Revero
TITLE: Key Fob Function
DATE: May 2018
Revised January 2019
If the key fobs do not operate in this capacity, begin with battery replacement.
If this key fob still does not function, test the antenna connections- see below.
Replace as needed (normal warranty rates apply) for the affected parts for replacement and diagnosis.
III. Key Fob Antennas:
Antennas which detect the presence of the key fob
are located in the following locations on the Revero
(fig. 3a):
1. Behind the dashboard
2. Beneath the center console
3. Underneath the rear parcel shelf
4. In both external mirrors
fig 3a
Karma Automotive Bulletins and service documents are intended for use by experienced and trained Technicians. If you lack the skills, tools, equipment
and a suitable workshop for any procedure described in this document, we suggest you leave such repairs to a Karma retailer and service provider. See
your service provider for advice on whether your vehicle may benefit from the information contained within this document. The information contained in the
Karma Bulletin is accurate at the date of publication. However, Karma Automotive regularly updates technical information. Please check with your Karma
Automotive Retailer and Karma Automotive service provider that the bulletin you intend to use contains the latest available information.
Page 6 of 11
Revised: January 2019
Service Communication
SC-18-90-01
MODEL: Karma Revero
TITLE: Key Fob Function
DATE: May 2018
Revised January 2019
Note: Interference from other radio equipment operating on a similar frequency may also affect the
operation of the key fob. Metal objects and mobile phones or devices held against or in close
proximity to the fob may affect signal reception. If this happens, operate the key fob as close to a
vehicle antenna as possible. If you are still unable to unlock the vehicle with the key fob, use the manual
door lock located on the passenger side front door.
If a problem persists inspection of the antennas may be required.
Measure Low Frequency (“LF”) Antenna resistance value at module connector.
The target resistance value is 1.5 ohms +/- 0.6 ohms.
ECU
LF Antenna Location
Connector and Pins
VCM
VCM
VCM
DML (Door Module Left)
DMR (Door Module Right)
Left OSRVM
Center Console
Right OSRVM
Trunk Shelf
Instrument Panel
D3300-7, Pin(s) 16 & 17
D3300-7, Pin(s) 8 & 20
D3300-7, Pin(s) 18 & 19
D1436-2, Pin(s) 14 & 28
D1437-2, Pin(s) 14 & 28
Remember that the RKE operations: Lock & Unlock from Front, Rear, Left and Right of the vehicle
operate at a minimum distance of 10 meters.
Locations of connectors- see also the Connector Reference Manual
Karma Automotive Bulletins and service documents are intended for use by experienced and trained Technicians. If you lack the skills, tools, equipment
and a suitable workshop for any procedure described in this document, we suggest you leave such repairs to a Karma retailer and service provider. See
your service provider for advice on whether your vehicle may benefit from the information contained within this document. The information contained in the
Karma Bulletin is accurate at the date of publication. However, Karma Automotive regularly updates technical information. Please check with your Karma
Automotive Retailer and Karma Automotive service provider that the bulletin you intend to use contains the latest available information.
Page 7 of 11
Revised: January 2019
Service Communication
SC-18-90-01
MODEL: Karma Revero
TITLE: Key Fob Function
DATE: May 2018
Revised January 2019
As a diagnostic aid the following diagram is available.
Key Not Found - Check Procedure
DIS (No Key Found)
(Weak RF Signals)
1
5
433 MHz HF
(carry ID)
3
Start/Stop
Button
1
VCM
VCM received ID
2
120 kHz RKE
(wake up
Keyfob)
4
2
3
Vehicle power (Fuses)
Check all antennas
(as per preceding page)
4
5
Check RKE antenna &
the connection (Headliner)
7
Check HF connector at VCM
(D3300-10)
6
Check RKE cable
6
7
When the key fob is not detected, place the key fob on the external rear view mirror base (fig.3b).
This will energize the fob enough to transmit a signal and allow for the security system to recognize the
fob in order to allow operation.
fig. 3b
Karma Automotive Bulletins and service documents are intended for use by experienced and trained Technicians. If you lack the skills, tools, equipment
and a suitable workshop for any procedure described in this document, we suggest you leave such repairs to a Karma retailer and service provider. See
your service provider for advice on whether your vehicle may benefit from the information contained within this document. The information contained in the
Karma Bulletin is accurate at the date of publication. However, Karma Automotive regularly updates technical information. Please check with your Karma
Automotive Retailer and Karma Automotive service provider that the bulletin you intend to use contains the latest available information.
Page 8 of 11
Revised: January 2019
Service Communication
SC-18-90-01
MODEL: Karma Revero
TITLE: Key Fob Function
DATE: May 2018
Revised January 2019
IN CAR SETTINGS:
There are nine different options offered through the touch panel (fig 4a).
To get to the these settings press:
1. My Karma
2. Settings
3. Doors & Mirrors
The following key fob action descriptions assume that all of these settings have been enabled.
The key fob can also be used to activate the Cabin Pre-Condition (“CPC”) feature (fig 4b). This feature
enables the fob to remotely turn on the climate control system and adjust the temperature inside the
vehicle to the pre-configured setting.
To configure CPC press:
1. My Karma
2. Settings
3. Seats & Keys
Under Seats & Keys scroll to CPC Target Temperature and/or CPC Confirmation.
fig 4a
fig 4b
Passive entry to the vehicle is allowed when you activate the exterior door handle switch and you have
a registered key close to the vehicle (in you pocket for example).The doors can be programmed to use
the Passive Lock feature.
Karma Automotive Bulletins and service documents are intended for use by experienced and trained Technicians. If you lack the skills, tools, equipment
and a suitable workshop for any procedure described in this document, we suggest you leave such repairs to a Karma retailer and service provider. See
your service provider for advice on whether your vehicle may benefit from the information contained within this document. The information contained in the
Karma Bulletin is accurate at the date of publication. However, Karma Automotive regularly updates technical information. Please check with your Karma
Automotive Retailer and Karma Automotive service provider that the bulletin you intend to use contains the latest available information.
Page 9 of 11
Revised: January 2019
Service Communication
SC-18-90-01
MODEL: Karma Revero
TITLE: Key Fob Function
DATE: May 2018
Revised January 2019
KEY FOB BATTERY
Replacing the Key Fob Battery:
If the vehicle detects that the key fob battery is low, a message will
be displayed in the touch panel: “Key Fob Battery Low” (fig 5a).
Key Fob battery voltage above 3V, is best
Battery thickness at least 3.12mm, make sure it is correct size
to make proper contact!
Note: Proper care to not short-circuit the battery must be taken if thickness
is measured using a metal caliper.
fig 5a
If the key fob battery is low at the time of service, replace as part of the normal
service procedure. Replace the battery every time the vehicle comes in for service under warranty as
a preventative measure for low battery. (normal warranty as applicable). When out of warranty replace
key fob battery as low or when requested.
To change the key fob battery:(fig 5b, 5c, 5d)
1. Place the key fob button side up on a soft surface so as not to mar or scratch any surface
2. Carefully release the battery tray lock. Slide the battery tray out to access the battery
3. Remove the battery and replace with a new battery Ensure proper polarity of coin cell battery when
installing. Positive Terminal must face down.
Note: Ensure battery tray is fully inserted when reinstalling the battery tray in the key fob (there is an
audible “click” when fully inserted).
Additionally, Batteries are type CR2032, 3V with a minimum thickness of 3.12mm. These are available
from Karma, P/N C161194800100.
fig 5b
fig 5c
fig 5d
Karma Automotive Bulletins and service documents are intended for use by experienced and trained Technicians. If you lack the skills, tools, equipment
and a suitable workshop for any procedure described in this document, we suggest you leave such repairs to a Karma retailer and service provider. See
your service provider for advice on whether your vehicle may benefit from the information contained within this document. The information contained in the
Karma Bulletin is accurate at the date of publication. However, Karma Automotive regularly updates technical information. Please check with your Karma
Automotive Retailer and Karma Automotive service provider that the bulletin you intend to use contains the latest available information.
Page 10 of 11
Revised: January 2019
Service Communication
SC-18-90-01
MODEL: Karma Revero
TITLE: Key Fob Function
DATE: May 2018
Revised January 2019
If a Key fob is not operating as described - create a TSS case, and provide the key serial number as
seen below in (fig. 6a) and (fig. 6b).
When presented with key fob concerns inspect the serial number as shown in (fig.6a).
The serial number begins with a “W” or an “X”.
Serial Number location
under the “CE” mark
fig. 6a
For Example: The fob is shown in (fig. 6b) with the
serial number “WF0073”.
Replace and reprogramming using normal warranty
labor operation 90-40-12-00 if required.
fig. 6b
Karma Automotive Bulletins and service documents are intended for use by experienced and trained Technicians. If you lack the skills, tools, equipment
and a suitable workshop for any procedure described in this document, we suggest you leave such repairs to a Karma retailer and service provider. See
your service provider for advice on whether your vehicle may benefit from the information contained within this document. The information contained in the
Karma Bulletin is accurate at the date of publication. However, Karma Automotive regularly updates technical information. Please check with your Karma
Automotive Retailer and Karma Automotive service provider that the bulletin you intend to use contains the latest available information.
Page 11 of 11
Revised: January 2019
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TSB/Document ID: SC-18-90-01
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- 【All-in-One Diagnostic Tool for Porsche + 2 Extra Vehicle Brands】New POR V4.0 is a professional car scanner specifically engineered with dedicated software pre-installed for Porsche. You can also download 2 additional software packages FOR FREE from 26 supported brands (e.g., for Benz, for BMW, for Audi, for Land Rover).Upgraded to adopt quad-core 1.3GHz processor and HD touchscreen and professional diagnsotic OS for faster& smooth diagnsotic.LIFETIME FREE UPDATES, NO SUBSCRIPTION COST! PLEASE TELL US YOUR CAR INFORMATION TO OBTAIN A LIST OF ALL COMPATIBLE SERVICES FOR YOUR CAR FIRST (FOR EXAMPLE: BATTERY REGISTRATION FUNCTION IS NOT COMPATIBLE WITH PORSCHE 997.2)
- 【29 MAINTENANCE SERVICES FOR PORSCHE SERIES CARS】 It can perform the 29 reset service for Porsche series cars-Oil Reset; SAS; EPB; BMS; ETC; DP ; ABS Bleeding; Injector Coding; TPMS; Air Suspension; Air Conditioner; Head Lamp; Body Stablity Control; Engine Control; Transmission; AirBag; Seat; DWR; MIS; EG; ODO; Clutch; High Voltage Battery; Cruise Control; Radar/Camera; Vehicle Setup,etc. Up to 49 vehicle-maintenance-services for the extra 2 vehicle brands you installed (Tip: Not all services will be worked on every car mode. Some vehicle models may be lack of certain ECU-control modules to make some services may not work).
- UPGRADE SERVICES: Breaks down 29 services to 234 sub-service for car owners/machinist to perform maintenance based on corresponding sub-modules! The detailed sub-service for sub-modules assist to perform precise vehicle maintenance.Improving the accuracy of car maintenance and reducing potential failure risks caused by whole-module maintenance to main modules.such as Oil Reset is refined into Reset maintenance interval/Reset service interval/Service Reset; Engine Control Reset is refined into Delete adaptation data/Short tests/System tests/Swirl-flap actuator/Bleeding high temperature coolant circuit and more.（sub-services vary based on vehicle model/year）
- 【EXTRA VEHICLE MAINTENANC SERVICES FOR SPECIFIC SYSTEMS】Have no ability to perferm calibration to special/specific systems/modules? This OBD2 scanner solve your troubles- for common systems/modules & for specific sytems/modules, assist you to perform diagnsing/calibration/reset/relearn services for non-common modules to finish your car maintenance/ diagnostic (eg: Central Computer system/module :Function activation/Multimedia interface test/AM Field Strength/Current FM Field Strength/FM Field Strength/MOST system reserve/Self-test/Deactivate Production Mode/Reset to factory settings/MOST System Test). (Tip: The services vary based on the vehicle brands)
- 【 MORE PROFESSIONAL BI-DIRECTIONAL ACTUATION TESET 】Exclusive POR V4.0 comes with powerful bidirectional testing capability,do actuaction test for deeper unit-checking after replacement or overhaul (1333 test items for Porsche, like:Fuel high-pressure fuel injector 1-4, Empty tank, Radiator fan, OTA-FC Connectivity, backrest, Backup battery, and more; 2136 test items for Audi; 1670 test items for Benz; 1599 test items for Volvo; 1360 test items for VW; 2705 test items for GM etc.). Help to check your car units work well or not after vehicle maintenance or daily car-body check, keep drives always in safety.(Warm tip:The quantity of test item is based on the units your car has)
Last update on 2026-06-23 / Affiliate links / Images from Amazon Product Advertising API
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