13434C Service Bulletin/Repair Instructions

Bulletin No.: 13434C

Date: June 2014
Program Bulletin
CUSTOMER SATISFACTION PROGRAM

SUBJECT:
Air Conditioning System Inoperative or Cools Intermittently
MODELS:
2013-2014 Chevrolet Spark
The A/C refrigerant filter kit photograph and kit description have been revised. Please

discard all copies of bulletin 13434B.

THIS PROGRAM IS IN EFFECT UNTIL APRIL 30, 2016.

CONDITION

Certain 2013-2014 model year Chevrolet Spark vehicles may have a condition where the air

conditioning (A/C) system does not work or cools intermittently due to inaccurate control of the

evaporator temperature sensor.

CORRECTION

Dealers are to inspect and, if necessary, replace the A/C compressor. Dealers are to also, if

necessary, replace the Evaporative Air Temperature (EAT) Sensor, install a low pressure switch

adaptor kit, and reprogram the Body Control Module.

VEHICLES INVOLVED

All involved vehicles are identified by Vehicle Identification Number on the Investigate Vehicle

History screen in GM Global Warranty Management system. Dealership service personnel

should always check this site to confirm vehicle involvement prior to beginning any required

inspections and/or repairs. It is important to routinely use this tool to verify eligibility because not

all similar vehicles may be involved regardless of description or option content.

For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle

identification number, customer name, and address information has been prepared and will be

provided to dealers through the GM GlobalConnect Recall Reports. Dealers will not have a report

available if they have no involved vehicles currently assigned.

The listing may contain customer names and addresses obtained from Motor Vehicle Registration

Records. The use of such motor vehicle registration data for any purpose other than follow-up

necessary to complete this program is a violation of law in several states/provinces/countries.

Copyright 2014 General Motors. All Rights Reserved.
Page 2
June 2014
Bulletin No.: 13434C
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete

this program.

PART INFORMATION

Parts required to complete this program are to be obtained from General Motors Customer Care

and Aftersales (GMCC&A). Please refer to your “involved vehicles listing” before ordering parts.

Normal orders should be placed on a DRO = Daily Replenishment Order. In an emergency

situation, parts should be ordered on a CSO = Customer Special Order.

Note: Very few A/C compressors are expected to require replacement. If inspection

determines replacement is necessary, obtain parts from GMCC&A. Do not order

A/C compressors for shelf stock.

Part Number

95442733
Description

FILTER, A/C REFRIG
94780910
HARNESS PKG, ACSRY WRG
Quantity/Vehicle

1

(if req'd)

1

(if req'd)
SERVICE PROCEDURE

A/C Refrigerant Filter Kit
3938787
(1) Block Filter (2) Plug with 0.005 in Diameter Hole (3) Pressure Switch (4) 0.005 in

Diameter Hole

Note: Do NOT attempt to drill the 0.005 in diameter hole bigger.
Page 3
June 2014
Bulletin No.: 13434C
Wiring Harness Kit
3782704
3782709
3782711
Is the A/C system operating normally? (Confirm at idle using the SI A/C Performance Specs)


Follow the breakpoint dates below for pressure switch, wiring harness, and BCM software

update.
If the A/C system is not working (Due to compressor failure, validate failure is not leak related).


Replace the A/C compressor

Follow the breakpoint dates below for pressure switch, wiring harness and BCM software

update.
Breakpoints

Note: Inspect Investigate Vehicle History in Global Warranty Management (GWM) system for

the below labor codes.

Bulletin

Number
Associated

Labor Code
PI1013
4480068
If not performed, use labor code

in this bulletin for submission
PI1121
4480108
If not performed, use labor code

in this bulletin for submission
Comments
Page 4
June 2014
Bulletin No.: 13434C
For vehicles built prior to November 22, 2012


Check to see if PI1013 (EAT sensor and cam link) was performed. If not, install the parts

as per PI1013 before next step.

If PI1121 (A/C hoses with pressure switch/wiring harness attached) has already been

installed, no further action needed. Submit warranty transaction using appropriate labor

code found in this bulletin.

If PI1121 (A/C hoses with pressure switch/wiring harness attached) has not been installed,

install the new refrigerant filter w/pressure switch and wiring harness. No BCM software

update needed. Proceed to A/C Compressor Checking Procedure below.
For vehicles built after November 21, 2012


If PI1121 (A/C hoses with pressure switch/wiring harness attached) has already been

installed, update the BCM software only, use the new calibration in TIS2Web. No further

action needed. Submit warranty transaction using appropriate labor code found in this

bulletin.

If PI1121 (A/C hoses with pressure switch/wiring harness attached) has not been installed,

install the new refrigerant filter w/pressure switch, wiring harness and update the BCM

software with the new calibration in TIS2Web. Proceed to A/C Compressor Checking

Procedure below.
A/C Compressor Checking Procedure

Note : The A/C compressor will not operate properly in cold outside air temperatures.

Note: To perform the A/C compressor check the vehicle must be in 59-95F/15-35℃ ambient

temperature or indoor.

1. Install the A/C charging equipment to the A/C hose service ports (High & Low).

2. Start the engine and operate the A/C system as indicated below.


A/C (On), Fan Speed (Max), Temperature (Full Cold), Recirculation Mode (On), Air

Delivery (Vent), Window Open.
3. After 3 minutes of idle, check the LP (Low Side Pressure) & HP (High Side Pressure) on the

A/C Charging Equipment.


Check pressure at idle.

Is the A/C LP over 450 kPa (65 psi) or the difference between HP and LP under 350 kPa

(51 psi)?

 If no - Install the low pressure switch kit, wiring harness and reprogram BCM as per

the above breakpoints.

 If yes - Replace the A/C compressor, install the low pressure switch kit,

wiring harness, and reprogram the BCM as per above breakpoints.
A/C Lower Pressure Switch Installation

1. Recover the A/C charge. (Refer to Refrigerant Recovery and Recharging in SI).

Caution: The negative battery cable MUST be disconnected before working on the A/C system.

If the negative battery cable is NOT disconnected before removing the IP wiring harness

connector, the outside air temperature sensor will set to the default value of -40 degrees to

prevent A/C compressor damage. If the negative battery cable is NOT disconnected, the
Page 5
June 2014
Bulletin No.: 13434C
outside air temperature will have to be updated. The A/C compressor will operate normally

when the outside air temperature sensor is updated. To update the outside air temperature

sensor, either wait 250 minutes with the ignition in the off position or drive the vehicle over 19

mph (30 km/h) for 5 minutes. The outside air temperature sensor may not update when vehicle

is at idle or driven lower than 16 mph (25 km/h).

2. Remove the battery negative cable.
3782715
3782917
3. Remove the A/C evaporator hose assembly bolt.

4. If necessary to replace the A/C compressor according to result of compressor checking

procedure, replace the A/C compressor.(Refer to A/C Compressor Replacement in SI)
Page 6
June 2014
Bulletin No.: 13434C
3782696
3782927
3782935
5. Install the A/C Refrigerant Filter between A/C compressor and evaporator hose with both

seals, as shown above. Tighten bolt to 22 N·m (16 lb ft).
Page 7
June 2014
3782938
6. Remove the glove box assembly.
3782940
7. Remove the front side door sill trim plate.
Bulletin No.: 13434C
Page 8
June 2014
Bulletin No.: 13434C
3653899
3653901

(1) Inline Body Connector

(2) IP Connector
8. Under the dash, disconnect the inline body connector and IP connector from the harness and

disconnect the washer hose.
3655568
9. Remove the harness clip shown below.
Page 9
June 2014
Bulletin No.: 13434C
3650563
10. Locate the harness grommet under the hood and remove from the opening. Pull through the

harness and connectors from the interior of the vehicle.

Note: DO NOT pull the harness through opening by the grommet.
3654455
11. Remove the tape from the harness at the grommet and slide down past the conduit.
3654012
12. With the new supplied harness with the connector shown above, insert the harness with

terminal ends through the center of the grommet and pull through up to the conduit.
Page 10
June 2014
Bulletin No.: 13434C
3653892
3653894
13. Insert the terminals into IP in-line connector. Refer to the pictures above.
3653917
14. Insert the wiring harness back through the I/P opening and install the grommet.

15. Position the grommet back to its original position and tape the harness to the grommet.

16. Insert the wiring harness back through the I/P opening and install the grommet.
Page 11
June 2014
Bulletin No.: 13434C
3782943
17. Route the new harness along the FWD wiring harness and attach with tie straps as shown.
3828227
18. Connect the connector to the Low Pressure Switch and attach the new harness with C-clips

to the A/C pipe.
Page 12
June 2014
Bulletin No.: 13434C
3654460
19. Inside the vehicle, disconnect the EVAP TEMP sensor connector.
3654138
20. With the second part of the new harness kit, install the pigtail connector to the EVAP TEMP

sensor connector.
3653909
21. Install the terminals into the FWD in-line connector as shown above.
Page 13
June 2014
Bulletin No.: 13434C
3653906
22. Wrap sponge tape around the EVAP TEMP connector as shown above.

23. Connect the remaining harness connectors and washer hose and install harness clip.

24. Install the front side door sill trim plate. Refer to Front Side Door Sill Trim Plate Replacement.
3650599
25. Route the wires along the A/C system wiring harness under the HVAC module assembly and

attach with four evenly spaced zip ties.

26. Only update the BCM software with the current calibration in TIS2Web using the VIN

breakpoints.

(Refer to Body Control Module Programming and Setup in SI)


The BCM software will be automatically chosen with new part numbers in TIS2Web.
27. Recheck the A/C pressures. At 3 minutes of idle, check the LP (Low Side Pressure) & HP

(High Side Pressure) using the A/C Charging Equipment according to “A/C Compressor

Checking Procedure”.

- Check pressure at idle.

- Is the A/C LP over 450 kPa (65 psi) or the difference between HP and LP under 350 kPa

(51 psi)?

-
If No - normal condition.
Page 14

-
June 2014
Bulletin No.: 13434C
If Yes – Refer to SI for diagnostics.
COURTESY TRANSPORTATION

The General Motors Courtesy Transportation program is intended to minimize customer

inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited

Warranties. The availability of courtesy transportation to customers whose vehicles are within the

warranty coverage period and involved in a product program is very important in maintaining

customer satisfaction. Dealers are to ensure that these customers understand that shuttle service

or some other form of courtesy transportation is available and will be provided at no charge.

Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy

Transportation guidelines.

WARRANTY TRANSACTION INFORMATION

Submit a transaction using the table below. All transactions should be submitted as a ZFAT

transaction type, unless noted otherwise.

Labor

Code
Description
Labor

Time
For Vehicles Built PRIOR to November 22, 2012

9100475

9100417

9100418

9100419

9100420
A/C System Operating Properly & PI's Already Completed – No Further

Action Req'd

Replace EAT Sensor & Cam Link

Install Low Pressure S/W Kit & Wiring Harness

Replace EAT Sensor, Cam Link, & Install Low Pressure S/W Kit

Replace A/C Compressor, EAT Sensor, Cam Link, & Install Low

Pressure S/W Kit
0.2

0.4

1.0*

1.4*

2.0*
For Vehicles Built AFTER November 21, 2012

9100421

9100373

9100374
Reprogram BCM

Install Low Pressure S/W Kit and Reprogram BCM

Replace A/C Compressor, Install Low Pressure S/W Kit, Wiring

Harness, & Reprogram BCM
0.5

1.5*

2.1*
* Includes evacuation/recharging the A/C system.

CUSTOMER NOTIFICATION

General Motors will notify customers of this program on their vehicle (see copy of customer letter

included with this bulletin).
Page 15
June 2014
Bulletin No.: 13434C
DEALER PROGRAM RESPONSIBILITY

All unsold new vehicles in dealers' possession and subject to this program must be held and

inspected/repaired per the service procedure of this program bulletin before customers take

possession of these vehicles.

Dealers are to service all vehicles subject to this program at no charge to customers, regardless

of mileage, age of vehicle, or ownership, through April 30, 2016.

Customers who have recently purchased vehicles sold from your vehicle inventory, and for which

there is no customer information indicated on the involved vehicle listing, are to be contacted by

the dealer. Arrangements are to be made to make the required correction according to the

instructions contained in this bulletin. A copy of the customer letter is provided in this bulletin for

your use in contacting customers. Program follow-up cards should not be used for this purpose,

since the customer may not as yet have received the notification letter.

In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your

facility for service through April 30, 2016, you must take the steps necessary to be sure the

program correction has been made before selling or releasing the vehicle.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that

may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the tools,

equipment, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to

your vehicle, or that your vehicle will have that condition. See your dealer for information on whether your vehicle may benefit from the information.
We Support

Voluntary Technician

Certification
Page 16
June 2014
Bulletin No.: 13434C

April 2014
Dear General Motors Customer:

We have learned that your 2013-2014 model year Chevrolet Spark vehicle may have a condition

where the air conditioning (A/C) system does not work or cools intermittently due to inaccurate

control of the evaporator temperature sensor.

Your satisfaction with your Chevrolet Spark is very important to us, so we are announcing a

program to prevent this condition or, if it has occurred, to fix it.

What We Will Do: Your GM dealer will inspect and, if necessary, replace the A/C compressor.

Your dealer will also, if necessary, replace the Evaporative Air Temperature (EAT) Sensor,

install a low pressure switch adaptor kit, and reprogram the Body Control Module. This service

will be performed for you at no charge until April 30, 2016. After that, any applicable warranty

will apply.

What You Should Do: To limit any possible inconvenience, we recommend that you contact

your dealer as soon as possible to schedule an appointment for this repair. By scheduling an

appointment, your dealer can ensure that the necessary parts will be available on your

scheduled appointment date.

If you have any questions or concerns that your dealer is unable to resolve, please contact the

appropriate Customer Assistance Center at the number listed below.

Division
Number
Chevrolet

Guam

Puerto Rico – English

Puerto Rico – Español

Virgin Islands
1-800-222-1020

65-6267-1752

1-800-496-9992

1-800-496-9993

1-800-496-9994
Text Telephones

(TTY)

1-800-833-2438
We sincerely regret any inconvenience or concern that this situation may cause you. We want

you to know that we will do our best, throughout your ownership experience, to ensure that your

Chevrolet Spark provides you many miles of enjoyable driving.

Jim Moloney

General Director,

Customer and Relationship Services

13434

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