NHTSA ID Number: 10168599
Manufacturer Communication Number: 2622
TSB/Document Date: 2019-12-02
Summary
Managing DCT gearbox faults
SAP.
Fault in gear selection
synchroniser.
SAP.
P1969
SAP.
P196A
Wiring harness
connecting gear selector
actuators to ground is
damaged or
disconnected.
Wiring harness
connecting gear selector
actuators to ground is
damaged or
disconnected.
Wiring harness
connecting gear selector
actuators to ground is
damaged or
disconnected.
SAP.
P196B
P196C
SAP.
P1974
P1975
Technical Service Department
Page 12 of 18
Component
involved
Description of DTC
Fault
Ground loop 3 (hydraulic parklock
- gear engagement actuators), too
low (earth level of power line B too
low)
Wiring harness
connecting gear selector
actuators to ground is
damaged or
disconnected.
SAP.
Electrical fault in gear
engage actuator
position sensors.
SAP.
Electrical fault in gear
engage actuator
position sensors.
SAP.
Electrical fault in gear
engage actuator
position sensors.
SAP.
Electrical fault in gear
engage actuator
position sensors.
SAP.
Electrical fault in gear
engage actuator
position sensors.
SAP.
Electrical fault in gear
engage actuator
position sensors.
SAP.
Electrical fault in gear
engage actuator
position sensors.
SAP.
Electrical fault in gear
engage actuator
position sensors.
SAP.
Electrical fault in
parklock position
sensor.
SAP.
Fault in gear selection
synchroniser.
SAP.
Fault in gear selection
synchroniser.
SAP.
sensor_REDUNDANT actuator 1
engage position sensor, too low
(redundant engage position sensor
A)
sensor_REDUNDANT actuator 1
engage position sensor, too high
(redundant engage position sensor
A)
sensor_REDUNDANT actuator 2
engage position sensor, too low
(redundant engage position sensor
B)
sensor_REDUNDANT actuator 2
engage position sensor, too high
(redundant engage position sensor
B)
sensor_REDUNDANT actuator 3
engage position sensor, too low
(redundant engage position sensor
C)
sensor_REDUNDANT actuator 3
engage position sensor, too high
(redundant engage position sensor
C)
sensor_REDUNDANT actuator 4
engage position sensor, too low
(redundant engage position sensor
D)
sensor_REDUNDANT actuator 4
engage position sensor, too high
(redundant engage position sensor
D)
APP_PARKLOCK, invalid signal
(parklock fault level high)
APP_SYNCHRO_1ST, too high
(command fault, 1st gear does not
arrive)
APP_SYNCHRO_1ST, too low
(command fault, 1st gear does not
leave)
DTC read on
NCR
P1976
P1977
P1978
P1979
P197A
P197B
P197C
P197D
P197E
P197F
P1980
P1981
P1982
P1983
P1984
Component
involved
Description of DTC
Fault
APP_SYNCHRO_1ST, no signal
(command fault, 1st gear stuck)
APP_SYNCHRO_2ND, too high
(command fault, 2nd gear does not
arrive)
APP_SYNCHRO_2ND, too low
(command fault, 2nd gear does not
leave)
APP_SYNCHRO_2ND, no signal
(command fault, 2nd gear stuck)
APP_SYNCHRO_3RD, too high
(command fault, 3rd gear does not
arrive)
APP_SYNCHRO_3RD, too low
(command fault, 3rd gear does not
leave)
APP_SYNCHRO_3RD, no signal
(command fault, 3rd gear stuck)
APP_SYNCHRO_4TH, too high
(command fault, 4th gear does not
arrive)
APP_SYNCHRO_4TH, too low
(command fault, 4th gear does not
leave)
APP_SYNCHRO_4TH, no signal
(command fault, 4th gear stuck)
APP_SYNCHRO_5TH, too high
(command fault, 5th gear does
not arrive)
APP_SYNCHRO_5TH, too low
(command fault, 5th gear does
not leave)
APP_SYNCHRO_5TH, no signal
(command fault, 5th gear stuck)
APP_SYNCHRO_6TH, too high
(command fault, 6th gear does
not arrive)
APP_SYNCHRO_6TH, too low
(command fault, 6th gear does
not leave)
Fault in gear selection
synchroniser.
SAP.
Fault in gear selection
synchroniser.
SAP.
Technical Service Department
Page 13 of 18
DTC read on
NCR
P1985
P1986
Fault in gear selection
synchroniser.
SAP.
Fault in gear selection
synchroniser.
SAP.
P1987
Fault in gear selection
synchroniser.
SAP.
P1988
Fault in gear selection
synchroniser.
SAP.
Fault in gear selection
synchroniser.
SAP.
P198A
Fault in gear selection
synchroniser.
SAP.
P198B
Fault in gear selection
synchroniser.
SAP.
P1989
P198C
Fault in gear selection
synchroniser.
SAP.
P198D
Fault in gear selection
synchroniser.
SAP.
P1991
Fault in gear selection
synchroniser.
SAP.
P1992
Fault in gear selection
synchroniser.
SAP.
Fault in gear selection
synchroniser.
SAP.
Fault in gear selection
synchroniser.
SAP.
Description of DTC
APP_SYNCHRO_6TH, no signal
(command fault, 6th gear stuck)
APP_SYNCHRO_7TH, too high
(command fault, 7th gear does not
arrive)
APP_SYNCHRO_7TH, too low
(command fault, 7th gear does not
leave)
APP_SYNCHRO_7TH, no signal
(command fault, 7th gear stuck)
APP_SYNCHRO_REV, too high
(command fault, reverse does not
arrive)
APP_SYNCHRO_REV, too low
(command fault, reverse does not
leave)
APP_SYNCHRO_REV, no signal
(command fault, reverse stuck)
APP_CPC_FAULT_ODD, invalid
signal (suspended ODD clutch
pressure command fault)
APP_CPC_FAULT_EVEN, invalid
signal (suspended EVEN clutch
pressure command fault)
APP_COMPLEMENT_
ROD_MOVE, too high (odd clutch
additional rod movement fault)
APP_COMPLEMENT_
ROD_MOVE, too low (even clutch
additional rod movement fault)
P1996
APP_EDIFF_THERMAL_
PROTECTION, too high
P1997
APP_EDIFF_PRESSURE, too high
Fault
Component
involved
Fault in gear selection
synchroniser.
SAP.
Fault in gear selection
synchroniser.
SAP.
Fault in gear selection
synchroniser.
SAP.
Fault in gear selection
synchroniser.
SAP.
Fault in gear selection
synchroniser.
SAP.
Fault in gear selection
synchroniser.
SAP.
Fault in gear selection
synchroniser.
SAP.
Fault on EVEN and/or
ODD clutch.
CCP.
Fault on EVEN and/or
ODD clutch.
CCP.
Mechanical fault in
RODs.
SAP.
Mechanical fault in
RODs.
SAP.
Electric/mechanical
fault in Ediff pressure
solenoid valve.
Electric/mechanical
fault in Ediff pressure
solenoid valve.
CCP.
CCP.
DTC read on
NCR
Description of DTC
P1998
APP_EDIFF_PRESSURE, too low
P1999
APP_EDIFF_PRESSURE, no signal
(ediff valve stuck)
P2714
EVEN clutch (2) lubrication
command signal, too low
P2715
EVEN clutch (2) lubrication
command signal, too high
P2716
EVEN clutch (2) lubrication
command signal, no signal
P2723
P2724
P2725
P2736
P2738
EDIFF pressure command signal,
too low
EDIFF pressure command signal,
too high
EDIFF pressure command signal,
no signal
Electric EDIFF pressure cut-off
command signal, no signal
Electric EDIFF pressure cut-off
command signal, too low
Technical Service Department
Page 14 of 18
Fault
Electric/mechanical
fault in Ediff pressure
solenoid valve.
Electric/mechanical
fault in Ediff pressure
solenoid valve.
Electric/mechanical
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TSB/Document ID: 2622
Replacement Service Bulletin Number:
MFR Communication Date: 2019-11-13
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: POWER TRAIN
MFR Component System:
MFR Component Subsystem:
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