Display during AEB-Mode - Continued
TABLE OF FAULT CODES
Fault MEANING OF CODE TCU reaction Checks Remarks
Code possible reason for fault detection (hex)
11 LOGICALERRORATGEARRANGESIGNAL TCU shifts transmission to•check cables from TCU to Failure cannot be TCU detected a wrong signal combination for the neutral shift lever detected in systems
gear range OP-Mode: transmission •check signal combinations with DW2/DW3 shift
•cable from shift lever to TCU is broken shutdown of shift lever positions for lever
•cable is defective and is contacted to battery voltage gear range or vehicle ground
•shift lever is defective
12 LOGICALERRORATDIRECTIONSELECTSIGNAL TCU shifts transmission to•check cables from TCU to TCU detected a wrong signal combination for the neutral shift lever
direction OP-Mode: transmission •check signal combinations
•cable from shift lever to TCU is broken shutdown of shift lever positions
•cable is defective and is contacted to battery voltage F-N-R or vehicle ground
•shift lever is defective
13 LOGICALERRORATENGINEDERATINGDEVICE after selecting neutral, •check engine derating This fault is reset TCU detected no reaction of engine while TCU changes to device after power up of
derating device active TCU
15 LOGICALERRORATDIRECTIONSELECTSIGNAL 2 TCU shifts transmission •check cables from TCU Fault is taken back if
SHIFTLEVER to neutral if selector to shift lever 2 TCU detects a valid
TCU detected a wrong signal combination for the active •check signal neutral signal for the
direction OP-Mode: transmission combinations of shift lever direction at the shift
•cable from shift lever 2 to TCU is broken shutdown if selector positions F-N-R lever
•cable is defective and is contacted to battery active voltage or vehicle ground
•shift lever is defective
16 LOGICALERRORATAXLECONNECTION OP-Mode: normal •check cables from TCU
feedback axle connection measured by TCU to feedback axle
and output signal axle connection don't fit connection switch
•axle can't be connected/disconnected due to •check signals of the
mechanical problem feedback axle connection
•one of the cables from feedback axle connection -switch to TCU is broken
Section 120-0010
Transmission - Transmission and Mounting
SM 2177 11-02
12
Fault MEANING OF CODE TCU reaction Checks Remarks
Code possible reason for fault detection (hex)
17 S.C. TOGROUNDAT customer specific •check cables from TCU See figure 10 TCU detected a wrong voltage at the output pin, to device
that looks like a s.c. to vehicle ground •check connectors from
•cable is defective and is contacted to vehicle TCU to device
ground •check the resistance of
•device has an internal defect device
•connector pin is contacted to vehicle ground
18 S.C. TOBATTERYVOLTAGEATADM4 no reaction •check cables from TCU See figure 10 TCU detected a wrong voltage at the output pin, to relay
that looks like a s.c. to battery voltage •check connectors from
•cable is defective and is contacted to battery TCU to relay
voltage •check the resistance of
•relay has an internal defect relay
•connector pin is contacted to battery voltage
19 O.C. ATADM4 no reaction •check cable from TCU See figure 10
TCU detected a wrong voltage at the output pin, to relay
that looks like a o.c. for this output pin •check connectors from
•cable is defective and has no connection to TCU relay to TCU
•relay has an internal defect •check resistance of
•connector has no connection to TCU relay
25 S.C. TOBATTERYVOLTAGEORO.C. ATTRANSMISSIONSUMP no reaction, •check cable from TCU to
TEMPERATURESENSORINPUT TCU uses default temp. sensor
the measured voltage is too high: OP-Mode: normal •check connectors
•cable is defective and is contacted to battery voltage •check temperature sensor
•cable has no connection to TCU
•temperature sensor has an internal defect
•connector pin is contacted to battery voltage or is broken
26 S.C. TOGROUNDATTRANSMISSIONSUMPTEMPERATURESENSOR no reaction, •check cable from TCU to
INPUT TCU uses default temp. sensor
the measured voltage is too low: OP-Mode: normal •check connectors
•cable is defective and is contacted to vehicle ground •check temperature sensor
•temperature sensor has an internal defect
•connector pin is contacted to vehicle ground
27 S.C. TOBATTERYVOLTAGE ORO.C. ATRETARDER no reaction, •check cable from TCU to
TEMPERATURESENSORINPUT TCU uses default temp. sensor
the measured voltage is too high: OP-Mode: normal •check connectors
•cable is defective and is contacted to battery voltage •check temperature sensor
•cable has no connection to TCU
•temperature sensor has an internal defect
•connector pin is contacted to battery voltage or is broken
28 S.C. TOGROUNDATRETARDERTEMPERATURESENSORINPUT no reaction, •check cable from TCU to the measured voltage is too low:TCU uses default temp. sensor
•cable is defective and is contacted to vehicle ground OP-Mode: normal •check connectors
•temperature sensor has an internal defect •check temperature sensor
•connector pin is contacted to vehicle ground
31 S.C. TOBATTERYVOLTAGEORO.C. ATENGINESPEEDINPUT OP-Mode: substitute clutch•check cable from TCU to TCU measures a voltage higher than 7.00 V at speed control sensor
input pin •check connectors
•cable is defective and is contacted to battery voltage •check speed sensor
•cable has no connection to TCU
•speed sensor has an internal defect
•connector pin is contacted to battery voltage or has no contact
Section 120-0010
SM 2177 11-02 13
Fault MEANING OF CODE TCU reaction Checks Remarks
Code possible reason for fault detection (hex)
32 S.C. TOGROUNDATENGINESPEEDINPUT OP-Mode: substitute clutch •check cable from TCU to TCU measures a voltage less than 0.45V at speed input control sensor
pin •check connectors
•cable/connector is defective and is contacted to •check speed sensor vehicle ground
•speed sensor has an internal defect
33 LOGICALERRORATENGINESPEEDINPUT OP-Mode: substitute clutch •check cable from TCU to This fault is reset after
TCU measures a engine speed over a threshold and the control sensor power up to TCU
next moment the measured speed is zero •check connectors
•cable / connector is defective and has bad contact •check speed sensor
•speed sensor has an internal defect •check sensor gap
•sensor gap has the wrong size
34 S.C. TOBATTERYVOLTAGEORO.C. ATTURBINESPEEDINPUT OP-Mode: substitute clutch •check cable from TCU to TCU measures a voltage higher than 7.00 V at speed control sensor
input pin if a failure is existing at •check connectors
•cable is defective and is contacted to battery voltage output speed, •check speed sensor
•cable has no connection to TCU TCU shifts to neutral
•speed sensor has an internal defect OP-Mode: limp home
•connector pin is contacted to battery voltage or has no contact
35 S.C. TOGROUNDATTURBINESPEEDINPUT OP-Mode: substitute clutch •check cable from TCU to TCU measures a voltage less than 0.45V at speed control sensor
input pin if a failure is existing at •check connectors
•cable / connector is defective and is contacted to output speed, •check speed sensor
vehicle ground TCU shifts to neutral
•speed sensor has an internal defect OP-Mode: limp home
36 LOGICALERRORATTURBINESPEEDINPUT OP-Mode: substitute clutch •check cable from TCU to This fault is reset after
TCU measures a turbine speed over a threshold and control sensor power up of TCU
at the next moment the measured speed is zero if a failure is existing at •check connectors
•cable / connector is defective and has bad contact output speed, •check speed sensor
•speed sensor has an internal defect TCU shifts to neutral •check sensor gap
•sensor gap has the wrong size OP-Mode: limp home
37 S.C. TOBATTERYVOLTAGEORO.C. ATINTERNALSPEEDINPUT OP-Mode: substitute clutch •check cable from TCU to TCU measures a voltage higher than 7.00 V at speed control sensor
input pin •check connectors
•cable is defective and is contacted to battery voltage •check speed sensor
•cable has no connection to TCU
•speed sensor has an internal defect
•connector pin is contacted to battery voltage or has no contact
38 S.C. TOGROUNDATINTERNALSPEEDINPUT OP-Mode: substitute clutch •check cable from TCU to TCU measures a voltage less than 0.45V at speed input control sensor
pin •check connectors
•cable / connector is defective and is contacted to •check speed sensor vehicle ground
•speed sensor has an internal defect
39 LOGICALERRORATINTERNALSPEEDINPUT OP-Mode: substitute clutch•check cable from TCU to This fault is reset after TCU measures a internal speed over a threshold and at control sensor power up of TCU
the next moment the measured speed is zero •check connectors
•cable / connector is defective and has bad contact •check speed sensor
•speed sensor has an internal defect •check sensor gap
•sensor gap has the wrong size
Transmission - Transmission and Mounting
Section 120-0010
Transmission - Transmission and Mounting
SM 2177 11-02
14
Fault MEANING OF CODE TCU reaction Checks Remarks
Code possible reason for fault detection (hex)
3A S.C. TOBATTERYVOLTAGEORO.C. ATOUTPUTSPEEDINPUT special mode for gear •check cable from TCU to TCU measures a voltage higher than 12.5 V at speed selection sensor
input pin OP-Mode: substitute clutch •check connectors
•cable is defective and is contacted to battery voltage control •check speed sensor
•cable has no connection to TCU if a failure is existing at
•speed sensor has an internal defect turbine speed,
•connector pin is contacted to battery voltage or has TCU shifts to neutral
no contact OP-Mode: limp home
3B S.C. TOGROUNDATOUTPUTSPEEDINPUT special mode for gear •check cable from TCU to TCU measures a voltage less than 1.00V at speed input selection sensor
pin OP-Mode: substitute clutch •check connectors
•cable / connector is defective and is contacted to control •check speed sensor
vehicle ground if a failure is existing at
turbine speed, TCU shifts to neutral OP-Mode: limp home
3C LOGICALERRORATOUTPUTSPEEDINPUT special mode for gear •check cable from TCU to This fault is reset after
TCU measures a output speed over a threshold and at selection sensor power up of TCU
the next moment the measured speed is zero OP-Mode: substitute clutch •check connectors
•cable / connector is defective and has bad contact control •check speed sensor
•speed sensor has an internal defect if a failure is existing at •check sensor gap
•sensor gap has the wrong size turbine speed, TCU shifts to neutral OP-Mode: limp home
3E OUTPUTSPEEDZERODOESNTFITTOOTHERSPEEDSIGNALS special mode for gear •check sensor signal of This fault is reset after if transmission is not neutral and the shifting has selection output speed sensor power up of TCU
finished, OP-Mode: substitute clutch •check sensor gap of output
TCU measures outputspeed zero and turbine speed or control speed sensor
internal speed not equal to zero. if a failure is existing at •check cable from TCU to
•speed sensor has an internal defect turbine speed, sensor
•sensor gap has the wrong size TCU shifts to neutral OP-Mode: limp home
56 ENGINE CONF TIMEOUT OP-Mode: substitute clutch •check engine controller
Timeout of CAN-message ENGINE CONF from engine control •check wire of CAN-Bus
controller •check cable to engine
•interference on CAN-Bus controller
•CAN wire/connector is broken
•CAN wire/connector is defective and has contact to vehicle ground or battery voltage
57 EEC1 TIMEOUT OP-Mode: substitute clutch •check EEC controller
Timeout of CAN-message EEC1 from EEC controller control •check wire of CAN-Bus
•interference on CAN-Bus •check cable to EEC
•CAN wire/connector is broken controller
•CAN wire/connector is defective and has contact to vehicle ground or battery voltage
58 EEC3 TIMEOUT OP-Mode: substitute clutch •check EEC controller
Timeout of CAN-message EEC3 from EEC controller control •check wire of CAN-Bus
•interference on CAN-Bus •check cable to EEC
•CAN wire/connector is broken controller
•CAN wire/connector is defective and has contact to vehicle ground or battery voltage
65 ENGINGETORQUESIGNAL OP-Mode: substitute clutch •check engine controller CAN signal for engine torque is defective control •check wire of CAN-Bus
•engine controller is defective •check cable to engine
•interference on CAN-Bus controller
66 KICKDOWNSIGNAL no reaction •check engine controller
CAN signal for kickdown is defective •check wire of CAN-Bus
•engine controller is defective •check cable to engine
•interference on CAN-Bus controller
Section 120-0010
SM 2177 11-02 15
Fault MEANING OF CODE TCU reaction Checks Remarks
Code possible reason for fault detection (hex)
69 REFERENCEENGINETORQUESIGNAL OP-Mode: substitute clutch•check engine controller CAN signal for reference of engine torque is defective control •check wire of CAN-Bus
•engine controller is defective •check cable to engine
•interference on CAN-Bus controller
6A ACTUALENGINETORQUESIGNAL OP-Mode: substitute clutch •check engine controller CAN signal for actual engine torque is defective control •check wire of CAN-Bus
•engine controller is defective •check cable to engine
•interference on CAN-Bus controller
6B NOMFRICTIONTORQUESIGNAL OP-Mode: substitute clutch •check engine controller CAN signal for nominal friction torque is defective control •check wire of CAN-Bus
•engine controller is defective •check cable to engine
•interference on CAN-Bus controller
6E EEC2 TIMEOUT no reaction •check EEC controller
Timeout of CAN-message EEC2 from EEC controller TCU uses default signal •check wire of CAN-Bus
•interference on CAN-Bus accelerator pedal in idle •check cable to EEC
•CAN wire/connector is broken position controller
•CAN wire/connector is defective and has contact to OP-Mode: normal vehicle ground or battery voltage
6F ACCELERATORLOWIDLESWITCHSIGNAL no reaction •check EEC controller if this signal is not CAN signal for manual downshift is defective TCU uses default signal •check wire of CAN-Bus transmitted via CAN,
•EEC controller is defective accelerator pedal in idle •check cable to EEC TCU uses default
•interference on CAN-Bus position controller signal
OP-Mode: normal
71 S.C. TOBATTERYVOLTAGEATCLUTCH K1 TCU shifts to neutral •check cable from TCU to 1) see figure 10 the measured resistance value of the valve is out of OP-Mode: limp home gearbox
limit, the voltage at K1 valve is too high. if failure at another •check connectors from
•cable / connector is defective and has contact to clutch is pending TCU to gearbox
battery voltage TCU shifts to neutral •check regulator resistance 1)
•cable / connector is defective and has contact to OP-Mode: TCU shutdown •check internal wire
another regulator output of the TCU harness of the gearbox
•regulator has an internal defect
72 S.C. TOGROUNDATCLUTCH K1 TCU shifts to neutral •check cable from TCU to 1) see figure 10 the measured resistance value of the valve is out of OP-Mode: limp home gearbox
limit, the voltage at K1 valve is too low. if failure at another •check connectors from
•cable / connector is defective and has contact to clutch is pending gearbox to TCU
vehicle ground TCU shifts to neutral •check regulator resistance 1)
•regulator has an internal defect OP-Mode: TCU shutdown •check internal wire harness of the gearbox
73 O.C. ATCLUTCH K1 TCU shifts to neutral •check cable from TCU to 1) see figure 10 the measured resistance value of the valve is out of OP-Mode: limp home gearbox
limit. if failure at another •check connectors from
•cable / connector is defective and has no contact to clutch is pending gearbox to TCU
TCU TCU shifts to neutral •check regulator resistance 1)
•regulator has an internal defect OP-Mode: TCU shutdown •check internal wire harness of the gearbox
74 S.C. TOBATTERYVOLTAGEATCLUTCH K2 TCU shifts to neutral •check cable from TCU to 1) see figure 10 the measured resistance value of the valve is out of OP-Mode: limp home gearbox
limit, the voltage at K2 valve is too high. if failure at another •check connectors from
•cable / connector is defective and has contact to clutch is pending gearbox to TCU
battery voltage TCU shifts to neutral •check regulator resistance 1)
•cable / connector is defective and has contact to OP-Mode: TCU shutdown •check internal wire
another regulator output of the TCU harness of the gearbox
•regulator has an internal defect
Transmission - Transmission and Mounting
Section 120-0010
Transmission - Transmission and Mounting
SM 2177 11-02
16
Fault MEANING OF CODE TCU reaction Checks Remarks
Code possible reason for fault detection (hex)
75 S.C. TOGROUNDATCLUTCH K2 TCU shifts to neutral •check cable from TCU to 1) see figure 10 the measured resistance value of the valve is out of OP-Mode: limp home gearbox
limit, the voltage at K2 valve is too low. if failure at another •check connectors from
•cable / connector is defective and has contact to clutch is pending gearbox to TCU
vehicle ground TCU shifts to neutral •check regulator resistance 1)
•regulator has an internal defect OP-Mode: TCU shutdown •check internal wire harness of the gearbox
76 O.C. ATCLUTCH K2 TCU shifts to neutral •check cable from TCU to 1) see figure 10 the measured resistance value of the valve is out of OP-Mode: limp home gearbox
limit. if failure at another •check connectors from
•cable / connector is defective and has no contact to clutch is pending gearbox to TCU
TCU TCU shifts to neutral •check regulator resistance 1)
•regulator has an internal defect OP-Mode: TCU shutdown •check internal wire harness of the gearbox
77 S.C. TOBATTERYVOLTAGEATCLUTCH K3 TCU shifts to neutral •check cable from TCU to 1) see figure 10 the measured resistance value of the valve is out of OP-Mode: limp home gearbox
limit, the voltage at K3 valve is too high. if failure at another •check connectors from
•cable / connector is defective and has contact to clutch is pending gearbox to TCU
battery voltage TCU shifts to neutral •check regulator resistance 1)
•cable / connector is defective and has contact to OP-Mode: TCU shutdown •check internal wire
another regulator output of the TCU harness of the gearbox
•regulator has an internal defect
78 S.C. TOGROUNDATCLUTCH K3 TCU shifts to neutral •check cable from TCU to 1) see figure 10 the measured resistance value of the valve is out of OP-Mode: limp home gearbox
limit, the voltage at K3 valve is too low. if failure at another •check connectors from
•cable / connector is defective and has contact to clutch is pending gearbox to TCU
vehicle ground TCU shifts to neutral •check regulator resistance 1)
•regulator has an internal defect OP-Mode: TCU shutdown •check internal wire harness of the gearbox
79 O.C. ATCLUTCH K3 TCU shifts to neutral •check cable from TCU to 1) see figure 10 the measured resistance value of the valve is out of OP-Mode: limp home gearbox
limit. if failure at another •check connectors from
•cable / connector is defective and has no contact to clutch is pending gearbox to TCU
TCU TCU shifts to neutral •check regulator resistance 1)
•regulator has an internal defect OP-Mode: TCU shutdown •check internal wire
•regulator has an internal defect OP-Mode: TCU shutdown •check internal wire