ASTON MARTIN CLIENT SERVICES

SERVICE BULLETIN
Reference number:

SB-07-0434

Subject:

Introduction to AMShift

Model(s):

V12 Vantage S Manual

VIN Range:

All

Applicable to:

All Dealers (Except Australia and South Korea)

Distribute to:

After Sales Manager
Executive Manager
Service Manager
Sales Manager

Issued: 15 November 2016

Warranty Staff
Technician(s)
Parts Staff

Reason for this Service Bulletin
A seven-speed ‘AMShift’ manual transmission is offered as a no-cost option for 17MY V12 Vantage S vehicles. This
Bulletin introduces the technical aspects of this transmission.

AMShift Manual Transmission for V12 Vantage S
17MY V12 Vantage S vehicles can be ordered with a seven-speed ‘Sportshift III’ automated manual transmission or with a
new seven-speed manual transmission. The transmission casing and internal gear components are common between the
two, with a manual gearshift mechanism to replace the Automatic Shift Manual (ASM) equipment.
The seven-speed manual transmission features a dog-leg configuration. This makes sure that the gears used most
frequently are aligned in a double ‘H’ pattern like a conventional six-speed manual.
The seven-speed manual transmission also includes the new AMShift feature. AMShift uses input signals from the clutch
slave cylinder, gear position and propeller shaft sensors. The engine management system is then able to increase or
decrease available engine torque. This means the driver does not need to lift their foot off the accelerator pedal when a
gear change up is made. This causes the vehicle mimic the technique of heel-and-toe downshifts and also offers the
capability of full-throttle upshifts for maximum smoothness under acceleration.
The installation of additional electrical components has made it necessary to also introduce a modified engine wiring
harness specific to seven-speed manual transmission vehicles.

Unique Tools and Equipment
If the transmission is to be removed, the gearshift handset must be removed from the body first to prevent damage to the
gear linkage cables. This also applies if the entire powertrain assembly (engine, torque tube and transmission) are
removed.
A guide tool will be available to make sure that the gearshift handset and the selector cables assembly can be correctly
aligned during installation. We will issue an additional Service Communication soon that gives more information about
the Assembly Guide.

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SERVICE BULLETIN

SB-07-0434

Workshop Procedure - Clutch Adaptation Reset:
As the AMShift function makes use of input signals from the clutch, the clutch adaptation values must be reset. This must
be done when any work related to the clutch is completed, such:


Important work on the engine or transmission.



When you have replaced an Engine Management System (EMS) module.



When you have replaced a Transmission Control Module (TCM).



When you have replaced one of the sensors and switches for the AMShift system.

You must always perform the AMDS procedure “Clutch Adaptation AMShift”.
1.

Do an AMDS Operation Check (Refer to Workshop Manual procedure 00.06.AD).
Note: There must be no Diagnostic Trouble Codes (DTCs) stored in the engine management system before
you proceed to the next step.

2.

Set the ignition control to position ‘I’ or position ‘II’.

3.

The engine must not be in operation.

4.

The engine temperature must be below 90 °C.

5.

Fully push and release the brake pedal at least three times. Push and hold the brake pedal after the last push.

6.

Fully push and hold the accelerator pedal.
Note: The clutch pedal must not be pushed.

7.

Push and hold the cancel button for the cruise control (CAN) to complete the procedure.
Note: The red warning triangle and the message ‘AMShift Service Required’ will show in the Instrument
Cluster when the reset procedure is complete.

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SERVICE BULLETIN

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Workshop Procedure - Clutch Learning:
1.

Do an AMDS Operation Check (Refer to Workshop Manual procedure 00.06.AD).
Note: There must be no Diagnostic Trouble Codes (DTCs) stored in the engine management system before
you proceed to the next step.

2.

Set the ignition control to position ‘I’ or position ‘II’.

3.

The engine must not be in operation.

4.

The engine temperature must be below 90 °C.

5.

Fully push and slowly release the clutch pedal five times. The pedal must be move to its maximum and minimum
positions each time.
Note: The clutch pedal does not need to be held down after the fifth push.

6.

Do an AMDS Operation Check (Refer to Workshop Manual procedure 00.06.AD).
Note: There must be no Diagnostic Trouble Codes (DTCs) stored in the engine management system before
you proceed to the next step.

7.

Start the engine and let it idle.

8.

Fully push and slowly release the clutch pedal five times. The pedal must be move to its maximum and minimum
positions each time.
Note: The clutch pedal does not need to be held down after the fifth push.

9.

Set the ignition to OFF and wait until the EMS has fully shut down.

10.

Wait 30 seconds to let the engine management system to fully shut down.

11.

Do an AMDS Operation Check (Refer to Workshop Manual procedure 00.06.AD).
Note: There must be no Diagnostic Trouble Codes (DTCs) stored in the engine management system before
you proceed to the next step.

12.

Set the ignition to ON and do an AMDS Operation Check (Refer to Workshop Manual procedure 00.06.AD).
Make sure that the BECM_M PID ClthFlgRngDone is set to True.

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SERVICE BULLETIN

SB-07-0434

AMShift Diagnostic Trouble Codes (DTCs)
DTC

P0606
P1120
P1121
P1124
P1125
P1134
P1135
P1148
P1149
P114C
P114D
P114E
P114F
P1150
P1151
P1152
P1153
P1154
P1155
P1156
P1157
P1158
U0100
U0100
U0100
U0115

DTC Name

MoFMSRx
Clth25PrcActv
Clth25PrcInactv
Clth75PrcActv
Clth75PrcInactv
ClthRAnaSRCMax
ClthRAnaSRCMin
CluWear
ConvSlipPrtLim
GbxPosSigPlaus
GbxPosSRCMaxUa
GbxPosSRCMaxUw
GbxPosSRCMinUa
GbxPosSRCMinUw
GbxSpd
GbxSpdPlausErr1
GbxSpdPlausErr2
GbxSpdPlausErr3
MoFTraSamt
ClthSRCInv
ClthStuckChkSnsr
ClthStuckChkSwt
Mst2Slv10msMsg8TO
Mst2Slv10msMsg9TO
Mst2Slv100msMsg7TO
Slv2Mst10msMsg6TO

DTC Description

Control Module Processor
Clutch switch 25 percent stuck open
Clutch switch 25 percent stuck closed
Clutch switch 75 percent stuck open
Clutch switch 75 percent stuck closed
Clutch position sensor circuit high
Clutch position sensor circuit low
Clutch wear detected
Clutch protection active
Gear position sensor plausibility, mismatch gear allocation
Gear position sensor Ua signal, circuit high
Gear position sensor Uw signal, circuit high
Gear position sensor Ua signal, circuit low
Gear position sensor Uw signal, circuit low
Gearbox input speed sensor, circuit
Gearbox input speed sensor plausibility, signal low
Gearbox input speed sensor plausibility, signal high
Gearbox input speed sensor plausibility, signal offset
Control Module Processor
Clutch position sensor inverted signal circuit
Clutch position sensor plausibility stuck check raw
Clutch switch plausibility stuck check raw
Vehicle Communication Bus B
Vehicle Communication Bus B
Vehicle Communication Bus B
Vehicle Communication Bus B

If any of the above DTCs are stored in the engine management system, use the AM Shift Service Tool in AMDS to check
all sensors and switches are plausible.
If there is a P0606 or P1155 code stored and the sensors and switches are both plausible, do a check of the EMS wiring
harnesses for any damaged or backed out connector pins. If the fault continues to be shown, contact AMTech.

Electrical Connector for the Propeller Shaft Speed Sensor
On some early built vehicles with seven-speed manual transmission, the electrical connector for the propeller shaft speed
sensor may not have a correctly formed key way. This can cause the connection between the vehicle harness and the
sensor to not latch correctly and can separate over time. If any DTCs are stored in the engine management system related
to the propeller shaft speed sensor, do a check that the connector is securely latched first.

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