EPS indicator does not go off (Without CAN Gateway) (2017 2018 2019)

NOTE: 

• The indicator comes on when the reprogramming fails.
• Do the reprogramming of the EPS control unit again.

1. 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. Refer to intermittent failures troubleshooting .

   NO 

   Go to step 2.

2. DTC check (EPS control unit)

   -1. Check for DTCs with the HDS.

   DTC Description	DTC	Freeze Frame

   Is DTC indicated?

   YES 

   Go to indicated DTC's troubleshooting.

   NO 

   Go to step 3.

3. Gauge control module operation check

   -1. Do the gauge control module self-diagnostic function .

   Is the gauge control module OK?

   YES 

   Go to step 4.

   NO 

   Replace the gauge control module .

4. Fuse check 1

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

   -2. Check the following fuse.

   Fuse	No. A2-1 (70 A)
   Location	Under-hood fuse/relay box

   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 a short to ground in the No. A2-1 (70 A) fuse circuit.

5. Fuse check 2

   -1. Check the following fuse.

   Fuse	No. D34 (10 A)
   Location	Under-dash fuse/relay box

   Is the fuse OK?

   YES 

   The fuse is OK. Reinstall the fuse, then go to step 6.

   NO 

   Replace the fuse. Turn the vehicle to the ON mode, then to the OFF (LOCK) mode. If the fuse blows again, repair a short to ground in the No. D34 (10 A) fuse circuit.

6. Open wire check (IG1/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/IG1 VSA/ABS wire is OK. Go to step 7.

   NO 

   Repair an open in the wire between the under-dash fuse/relay box and the EPS control unit.

7. 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. 2
   Test point 2	Body ground

   Is there battery voltage?

   YES 

   The +B EPS wire is OK. Go to step 8.

   NO 

   Repair an open in the wire between the under-hood fuse/relay box and the EPS control unit.

8. 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. 1
   Test point 2	Body ground

   Is there continuity?

   YES 

   The GND wire is OK. Go to step 9.

   NO 

   Repair an open in the wire between the EPS control unit and body ground (G202).

9. Open wire check (F-CAN_H, F-CAN_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. 3
   Test point 2	Gauge control module connector A (32P) No. 19

   Test circuit 2
   Test point 1	EPS control unit connector B (6P) No. 1
   Test point 2	Gauge control module connector A (32P) No. 20

   Is there continuity?

   YES 

   The F-CAN_H and F-CAN_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 .

   NO 

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