ABS indicator, brake system indicator (red), VSA indicator, and brake system indicator (amber) do not go off (2017 2018)

NOTE:  Make sure the HDS communicates with the vehicle and the VSA modulator-control unit. If it does not, go to the DLC circuit troubleshooting .

1. DTC check (VSA modulator-control unit)

   -1. Turn the vehicle to the ON mode.

   -2. 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 2.

2. Gauge control module operation check

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

   Is the gauge control module OK?

   YES 

   Go to step 3.

   NO 

   Replace the gauge control module .

3. Fuse check 1

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

   -2. Check the following fuse.

   Fuse	No. A1-4 (20 A)
   Location	Under-hood fuse/relay box

   Is the fuse OK?

   YES 

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

   NO 

   Replace the fuse. If the fuse blows again, repair a short to ground in the No. A1-4 (20 A) fuse circuit.

4. Fuse check 2

   -1. Check the following fuse.

   Fuse	No. C9 (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. C9 (7.5 A) fuse circuit.

5. Open wire check (IG1 VSA line)

   -1. Disconnect the following connector.

   VSA modulator-control unit 38P connector

   -2. Turn the vehicle to the ON mode.

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

   Test condition	Vehicle ON mode
   	VSA modulator-control unit 38P connector: disconnected

   Test point 1	VSA modulator-control unit 38P connector No. 11
   Test point 2	Body ground

   Is there battery voltage?

   YES 

   The IG1 VSA wire is OK. Go to step 6.

   NO 

   Repair an open in the wire between the No. C9 (7.5 A) fuse in the under-dash fuse/relay box and the VSA modulator-control unit.

6. Open wire check (FSR+B line)

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

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

   Test condition	Vehicle OFF (LOCK) mode
   	VSA modulator-control unit 38P connector: disconnected
   Test point 1	VSA modulator-control unit 38P connector No. 4
   Test point 2	Body ground

   Is there battery voltage?

   YES 

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

   NO 

   Repair an open in the wire between the No. A1-4 (20 A) fuse in the under-hood fuse/relay box and the VSA modulator-control unit.

7. Open wire check (PGND line)

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

   Test condition	Vehicle OFF (LOCK) mode
   	VSA modulator-control unit 38P connector: disconnected
   Test point 1	VSA modulator-control unit 38P connector No. 1
   Test point 2	Body ground

   Is there continuity?

   YES 

   The PGND wire is OK. Go to step 8.

   NO 

   Repair an open in the wire between the VSA modulator-control unit and body ground (G203).

8. 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
   	VSA modulator-control unit 38P connector: disconnected
   	Gauge control module 32P connector: disconnected
   Test circuit 1
   Test point 1	VSA modulator-control unit 38P connector No. 6
   Test point 2	Gauge control module 32P connector No. 24

   Test circuit 2
   Test point 1	VSA modulator-control unit 38P connector No. 7
   Test point 2	Gauge control module 32P connector No. 25

   Is there continuity?

   YES 

   The F-CAN_H and F-CAN_L wires are OK. Replace the VSA modulator-control unit .

   NO 

   Repair an open in the wire between the gauge control module and the VSA modulator-control unit.