VSA System Symptom Troubleshooting - ABS indicator, brake system indicator (red), VSA indicator, and brake system indicator (amber) do not go off (Without ACC)
ABS indicator, brake system indicator (red), VSA indicator, and brake system indicator (amber) do not go off
- All DTCs check
-1. Turn the vehicle to the ON mode.
-2. All DTCs check with the HDS.
All DTCs
Are there DTCs indicated?
YES
Go to indicated DTC's troubleshooting.
NO
Go to step 2.
- Fuse check 1
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Check the following fuse.
Fuse No. A41 Is the fuse OK?
YES
The fuse is OK. Reinstall the fuse, then go to step 3.
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 body ground on the No. A41 fuse circuit.
- Fuse check 2
-1. Check the following fuse.
Fuse No. A2-3 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 the short to body ground on the No. A2-3 fuse circuit.
- Open wire check (IG1 ABS/VSA (or IG1 VSA/ABS) line)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connector.
VSA modulator-control unit 46P connector -3. Turn the vehicle to the ON mode.
-4. 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. 13 Test point 2 Body ground Is there battery voltage?
YES
The IG1 ABS/VSA (or IG1 VSA/ABS) wire is OK. Go to step 5.
NO
Repair an open in the wire between the No. A41 fuse 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 6.
NO
Repair an open in the wire between the No. A2-3 fuse 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. 4 Test point 2 Body ground Is there continuity?
YES
The GND wire is OK. Go to step 7.
NO
Repair an open in the wire between the VSA modulator-control unit and body ground (G401).
- Open wire check (F-CAN A_H, F-CAN A_L lines)
-1. Disconnect the following connectors.
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 point 1 Gauge control module connector A (32P) No. 20 Test point 2 VSA modulator-control unit 46P connector No. 20 Test point 1 Gauge control module connector A (32P) No. 21 Test point 2 VSA modulator-control unit 46P connector No. 21 Is there continuity?
YES
Check for loose terminals in the VSA modulator-control unit 46P connector. If the symptom/indication is still present, replace the VSA modulator-control unit .
NO
Repair an open in the wire between the VSA modulator-control unit and the gauge control module.