NO.10 TCS DOES NOT WORK CORRECTLY

id040300875300

10

TCS does not work correctly.

[TROUBLESHOOTING HINTS]

• There is a difference in size or air pressure between the front and rear tires

• There is a malfunction in the engine control system.

• ABS/TCS HU/CM detects TCS system malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
CHECK TIRE SIZE AND AIR PRESSURE
Inspect tire size and air pressure.
See
Are size and air pressure as specified?
Yes
Go to next step.
No
Replace with specified tires or adjust tire air pressure.
2
CHECK FOR DTCS IN ABS/TCS HU/CM
Have DTCs been recorded in memory?
Yes
Perform inspection using appropriate DTC.
No
Go to next step.
3
CHECK FOR DTCS IN PCM
Check the DTC for the PCM ON-BOARD DIAGNOSTIC SYSTEM.
Have DTCs been recorded in memory?
See
Yes
Perform inspection using appropriate DTC.
No
Go to next step.
4
CHECK TO MAKE SURE TORQUE REDUCTION SIGNAL GOING FROM ABS/TCS HU/CM TO PCM IS BEING RECEIVED CORRECTLY
Select ENG - TRQ (engine torque reduction signal) using WDS or equivalent.
Increase the engine speed to 3,000 rpm.
Input 280 N·m ENG _ TRQ to PCM using WDS or equivalent.
Does engine speed decrease?
Yes
System is normal.
Recheck customer's complaint.
No
Replace ABS/TCS HU/CM.