EPS indicator does not go off (2016 2017 2018)

EPS indicator does not go off 

NOTE:  The indicator comes on when the reprogramming fails.

1. Problem verification

   -1. Turn the vehicle to the ON mode.

   -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.

2. DTC check

   -1. Check for DTCs with the HDS.

   DTC Description	DTC	Freeze Frame

   Are there DTCs 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 .

   Does the EPS indicator blinkΩ

   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. C27 (7.5 A)
   Location	Under-dash fuse/relay box

   Is the fuse OK?

   YES 

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

   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. C27 (7.5A) fuse circuit.

5. Fuse check 2

   -1. Check the following fuse.

   Fuse	No. D1-1 (70 A)
   Location	Auxiliary under-dash fuse box A

   Is the fuse OK?

   YES 

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

   NO 

   Replace the fuse. If the fuse blows again, repair a short to ground in the No. D1-1 (70 A) fuse circuit.

6. Open wire check (+B EPS line)

   -1. Disconnect the following connector.

   EPS control unit connector C (2P)

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

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

   Is there battery voltage?

   YES 

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

   NO 

   Repair an open in the +B EPS wire between the EPS control unit and the No. D1-1 (70 A) fuse.

7. Open wire check (IG1 VSA/EPS 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
   	EPS control unit connector C (2P): disconnected
   Test point 1	EPS control unit connector B (6P) No. 1
   Test point 2	Body ground

   Is there battery voltage?

   YES 

   The IG1 VSA/EPS wire is OK. Go to step 8.

   NO 

   Repair an open in the IG1 VSA/EPS wire between the No. C27 (7.5 A) fuse in the under-dash fuse/relay box and the EPS control unit.

8. Open wire check (GND line)

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

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

   Test condition	Vehicle OFF (LOCK) mode
   	EPS control unit connector B (6P): disconnected
   	EPS control unit connector C (2P): disconnected
   Test point 1	EPS control unit connector C (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 GND wire between the EPS control unit and body ground (G402).

9. Open wire check (F-CAN_H, F-CAN_L lines)

   -1. Disconnect the following connector.

   Gauge control module 32P connector

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

   Test condition	Vehicle OFF (LOCK) mode
   	EPS control unit connector B (6P): disconnected
   	EPS control unit connector C (2P): disconnected
   	Gauge control 32P module connector: disconnected
   Test point 1	EPS control unit connector B (6P) No. 4
   Test point 2	Gauge control module 32P connector No. 21

   Test point 1	EPS control unit connector B (6P) No. 3
   Test point 2	Gauge control module 32P connector No. 22

   Is there continuity?

   YES 

   The F-CAN_H and F-CAN_L wires are OK. Go to step 10.

   NO 

   Repair an open in the F-CAN_H and/or F-CAN_L wire between the EPS control unit and the gauge control module.

10. EPS control unit check (update)

    -1. Reconnect the following connectors.

    EPS control unit connector B (6P)

    EPS control unit connector C (2P)

    Gauge control module 32P connector

    -2. Update the EPS control unit if it does not have the latest software .

    -3. Turn the vehicle to the OFF (LOCK) mode, then the ON mode.

    -4. Check the EPS indicator.

    Does the EPS indicator come on, then go off?

    YES 

    Troubleshooting is complete.

    NO 

    Check for loose terminals and poor connections at the EPS control unit connectors. If the EPS control unit was updated and the symptom/indication is still present, replace the EPS motor/control unit .