NO.4 BRAKE SYSTEM WARNING LIGHT DOES NOT ILLUMINATE WITH IGNITION SWITCH ON

id040300879300

4

BRAKE system warning light does not illuminate with ignition switch on.

[TROUBLESHOOTING HINTS]

• Malfunction of instrument cluster or ABS (ABS/TCS) HU/CM

STEP

INSPECTION

ACTION

1
CONFIRM DTC U1900 USING WDS OR EQUIVALENT
• Retrieve DTC from PCM, ABS (ABS/TCS), and instrument cluster.
• Is DTC U1900 retrieved?
Yes
Go to next step.
No
Inspect instrument cluster. If OK, then go to the next step.
2
CONFIRM THE FOLLOWING PIDs USING WDS OR EQUIVALENT
• ABS_MSG
• PCM_MSG
• Is "not present'' massage displayed on WDS or equivalent?
Yes
Replace instrument cluster (open circuit in instrument cluster).
No
Network communication, for related system is malfunction.
Repair or replace as necessary.