VSA System Symptom Troubleshooting - ABS indicator, brake system indicator (red), VSA indicator, and brake system indicator (amber) do not go off (Without CAN Gateway) (2017 2018 2019)
ABS indicator, brake system indicator (red), VSA indicator, and brake system indicator (amber) do not go off
NOTE: Make sure the HDS communicates with the vehicle and the VSA modulator-control unit. If it does not, go to the F-CAN circuit troubleshooting .
- 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.
- 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
- Fuse check 1
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Check the following fuse.
Fuse No. A3-2 (40 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. A3-2 (40 A) fuse circuit.
- 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 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. D34 (10 A) fuse circuit.
- Open wire check (IG1 VSA/ABS line)
-1. Disconnect the following connector.
VSA modulator-control unit 46P 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 46P connector: disconnected Test point 1 VSA modulator-control unit 46P connector No. 14 Test point 2 Body ground Is there battery voltage?
YES
The IG1 VSA/ABS wire is OK. Go to step 6.
NO
Repair an open in the wire between the No. D34 (10 A) fuse in the under-dash fuse/relay box and the VSA modulator-control unit.
- Open wire check (+B ABS/VSA FSR 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 46P connector: disconnected Test point 1 VSA modulator-control unit 46P connector No. 1 Test point 2 Body ground Is there battery voltage?
YES
The +B ABS/VSA FSR wire is OK. Go to step 7.
NO
Repair an open in the wire between the No. A3-2 (40 A) fuse in the under-hood fuse/relay box and the VSA modulator-control unit.
- Open wire check (GND line)
-1. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode VSA modulator-control unit 46P connector: disconnected Test point 1 VSA modulator-control unit 46P connector No. 2 Test point 2 Body ground Is there continuity?
YES
The GND wire is OK. Go to step 8.
NO
Repair an open in the wire between the VSA modulator-control unit and body ground (G201).
- 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 VSA modulator-control unit 46P connector: disconnected Gauge control module connector A (32P): disconnected Test circuit 1 Test point 1 VSA modulator-control unit 46P connector No. 40 Test point 2 Gauge control module connector A (32P) No. 19 Test circuit 2 Test point 1 VSA modulator-control unit 46P connector No. 28 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 in the VSA modulator-control unit 46P connector. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they 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.