Operation and maintenance manual

Section 120-0010
13
SM 2124 Rev 3 8-03
Transmission - Transmission and Mounting
Fault MEANING OF CODE TCU reaction Checks Remarks
Code possible reason for fault detection
(hex)
32
S.C. TO GROUND AT ENGINE SPEED INPUT 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
LOGICAL ERROR AT ENGINE SPEED INPUT 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.TO BATTERY VOLTAGE OR O.C. AT TURBINE SPEED INPUT 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.TO GROUND AT TURBINE SPEED INPUT 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
LOGICAL ERROR AT TURBINE SPEED INPUT 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. TO BATTERY VOLTAGE OR O.C.AT INTERNAL SPEED INPUT 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. TO GROUND AT INTERNAL SPEED INPUT 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
LOGICAL ERROR AT INTERNAL SPEED INPUT 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