NO.3 BRAKE SYSTEM WARNING LIGHT DOES NOT ILLUMINATE WHEN IGNITION SWITCH TURNED TO ON POSITION

id040300801900

3

BRAKE system warning light does not illuminate when the ignition switch is turned to the ON position.

[TROUBLESHOOTING HINTS]

• Malfunction of instrument cluster or ABS HU/CM

Diagnostic procedure

STEP

INSPECTION

ACTION

1
CONFIRM DTC U1900 USING M-MDS
• Retrieve DTCs from the PCM, ABS and instrument cluster.
• Is DTC U1900 retrieved?
Yes
Go to the next step.
No
Inspect the instrument cluster. If normal, go to the next step.
2
CONFIRM DTCS U0121, U0100 AND U0214 USING M-MDS:
• Retrieve DTCs from the instrument cluster.
• Are DTCs U0121, U0100 and U0214 retrieved?
Yes
Replace the instrument cluster (open circuit in instrument cluster).
No
Inspect the network communication for a related system malfunction.
Repair or replace if necessary.