EPS Symptom Troubleshooting - EPS indicator does not go off (Without ACC)

EPS indicator does not go off

NOTE:

The all sensor learn in the VSA system may not have properly completed.
The indicator also comes on when the reprogramming fails.
Do the reprogramming of the EPS control unit again.

Problem verification
-1. Start the engine.

-2. Check the EPS indicator.

Does the EPS indicator come on, then go off?

YES

Intermittent failure, the system is OK at this time.

NO

Go to step 2.
All DTCs check
-1. All DTCs check with the HDS.

All DTCs

Are there DTCs indicated?

YES

Go to indicated DTC's troubleshooting.

NO

Go to step 3.
Fuse check 1
-1. Turn the vehicle to the OFF (LOCK) mode.

-2. Check the following fuses.

Fuse No. A41

Are the fuses OK?

YES

The fuse is OK. Reinstall the fuse, then go to step 4.

NO

Replace the fuse. Turn the vehicle to the ON mode, then the OFF (LOCK) mode. If the fuse blows again, repair the short to ground on the No. A41 fuse circuit.
Fuse check 2
-1. Check the following fuse.

Fuse No. A2-7

Is the fuse OK?

YES

The fuse is OK. Reinstall the fuse, then go to step 5.

NO

Replace the fuse. If the fuse blows again, repair the short to ground on the No. A2-7 fuse circuit.

Open wire check (IG1 ABS/VSA (or IG1 VSA/ABS) line)

-1. Disconnect the following connector.

EPS control unit connector B (6P)

-2. Turn the vehicle to the ON mode.

-3. Measure the voltage between test points 1 and 2.

Test condition	Vehicle ON mode
	EPS control unit connector B (6P): disconnected
Test point 1	EPS control unit connector B (6P) No. 5
Test point 2	Body ground

Is there battery voltage?

YES

The IG1 ABS/VSA (or IG1 VSA/ABS) wire is OK. Go to step 6.

Repair an open in the +B EPS wire between the No. A41 fuse in the under-hood fuse/relay box and the EPS control unit.

Open wire check (+B EPS line)

-1. Turn the vehicle to the OFF (LOCK) mode.

-2. Disconnect the following connector.

EPS control unit connector A (2P)

-3. Measure the voltage between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	EPS control unit connector A (2P): disconnected
	EPS control unit connector B (6P): disconnected
Test point 1	EPS control unit connector A (2P) No. 1
Test point 2	Body ground

Is there battery voltage?

YES

The +B EPS wire is OK. Go to step 7.

Repair an open in the +B EPS wire between the No. A2-7 fuse in the under-hood fuse/relay box and the EPS control unit.

Open wire check (GND line)

-1. Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	EPS control unit connector A (2P): disconnected
	EPS control unit connector B (6P): disconnected
Test point 1	EPS control unit connector A (2P) No. 2
Test point 2	Body ground

Is there continuity?

YES

The GND wire is OK. Go to step 8.

Repair an open in the GND wire between the EPS control unit and body ground (G302).

Open wire check (F-CAN A_H, F-CAN A_L lines)

-1. Disconnect the following connector.

Gauge control module connector A (32P)

-2. Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	EPS control unit connector A (2P): disconnected
	EPS control unit connector B (6P): disconnected
	Gauge control module connector A (32P): disconnected
Test circuit 1
Test point 1	EPS control unit connector B (6P) No. 4
Test point 2	Gauge control module connector A (32P) No. 20

Test circuit 2
Test point 1	EPS control unit connector B (6P) No. 1
Test point 2	Gauge control module connector A (32P) No. 21

Is there continuity?

YES

The F-CAN A_H and F-CAN A_L wires are OK. Check for loose terminals and poor connections at the EPS control unit connectors. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting or substitute a known-good EPS motor/control unit , then recheck. If the symptom/indication goes away with a known-good EPS motor/control unit, replace the original EPS motor/control unit .

Repair an open in the wire between the EPS control unit and the gauge control module.