NO.2 ELECTRIC POWER STEERING (EPS) WARNING LIGHT DOES NOT GO OUT EVEN THOUGH ENGINE HAS STARTED

id060300800900

2

Electric power steering (EPS) warning light does not go out even though engine has started.

TROUBLESHOOTING HINTS

•  EPS system malfunction.

―  Wiring harness malfunction

―  Connector condition malfunction

―  Torque sensor malfunction

―  EPS motor malfunction

―  Fuse malfunction

―  EPS control module malfunction

•  EPS control module detects an EPS system malfunction even though the EPS system is normal.

•  CAN communication line malfunction.

―  Vehicle speed signal malfunction

―  Engine speed signal malfunction

―  CAN wiring harness malfunction

•  EPS warning light circuit malfunction in the instrument cluster.

•  CAN wiring harness malfunction.

―  Malfunction in wiring harness between EPS control module and instrument cluster

•  Module configuration procedure was not completed properly.

Diagnostic procedure

STEP	INSPECTION		ACTION
1	• Perform the DTC inspection. • Is an error message regarding the communication between the EPS control module and the M-MDS displayed?	Yes	If a communication error message is displayed even after inspecting according to the procedures displayed on the M-MDS.
1		No	Go to the next step.
2	• Have DTCs been recorded in the memory?	Yes	Perform inspection using the appropriate DTC.
2	• Have DTCs been recorded in the memory?	No	Go to the next step.
3	• Turn off the EPS warning light at instrument cluster using the “WL+IL” of the M-MDS active command modes function. • Does the EPS warning light turn off?	Yes	EPS control module malfunction. Replace the steering column. (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION [L.H.D.].) (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION [R.H.D.].)
3		No	Malfunction is in the EPS warning light illumination control circuit in the instrument cluster. Replace the instrument cluster (See GENERAL PROCEDURES (STEERING).)