NO. 3 ABS WARNING LIGHT ILLUMINATES [INSTRUMENT CLUSTER]


id0903d5807600

3

ABS warning light illuminates

POSSIBLE CAUSE
•  ABS HU/CM malfunction
•  DSC HU/CM malfunction
•  ABS CM stores DTC
•  DSC CM stores DTC
•  Instrument cluster malfunction
•  Poor connection of instrument cluster connector, terminal damage
•  Poor connection of ABS HU/CM or DSC HU/CM connector, terminal damage
•  Short circuit in wiring harness between CAN-L, CAN-H and ground
•  Open circuit in CAN wiring harness (CAN-L, CAN-H)
•  CAN wiring harness (CAN-L, CAN-H) short each other
•  ABS/DSC configuration incomplete or in error
•  Instrument cluster configuration incomplete or in error

Diagnostic procedure

STEP

INSPECTION

ACTION

1
•  Start the engine.
•  Does the ABS warning light turn off?
Yes
Troubleshooting completed. (The system is normal.)
No
Go to the next step.
2
•  Start the engine.
•  Inspect the condition of the warning lights and indicator lights condition.
•  Do two or more lights illuminate at the same time.
Yes
Go to Step 5.
No
Go to the next step.
3
•  Retrieve the DTC related to the ABS CM and DSC CM using the M-MDS.
•  Is there any DTC retrieved?
Yes
Go to the applicable troubleshooting procedure.
No
Go to the next step.
4
•  Turn off the ABS warning light using the M-MDS instrument cluster active command modes WL+IL.
•  Does the ABS warning light turn off according to the active command modes?
Yes
Verify that the ABS HU/CM or DSC HU/CM connector is connected securely.
If the ABS HU/CM or DSC HU/CM connector is poorly connected:
•  Connect the ABS HU/CM or DSC HU/CM connector securely.
If a malfunction is in the ABS HU/CM or DSC HU/CM connector:
•  Replace the ABS HU/CM or DSC HU/CM.
If a malfunction is in the vehicle side connector:
•  Repair or replace the malfunctioning part.
No
Replace the instrument cluster.
5
•  Retrieve the DTC related to the instrument cluster using the M-MDS.
Note
•  If a DTC related to a missing message from the ABS/DSC control module is recorded, verify that the ignition voltage is normal (11 V or more). If the voltage is low (11 V or less), there is the possibility that a DTC has been mistakenly recorded.
•  Is there any DTC retrieved?
Yes
Go to the applicable DTC inspection.
No
Go to the next step.
6
•  Disconnect the negative battery cable.
•  Measure the resistance between the DLC-2 terminals F and E.
•  Is the resistance 54—66 ohms?
Yes
Go to the next step.
No
Go to step 8.
7
•  Inspect DLC-2 terminals F and E for a short to the power supply or ground.
•  Is there any malfunction?
Yes
Inspect the wiring harness and CAN system-related module.
Repair or replace the malfunctioning part.
No
Replace the instrument cluster.
8
•  Switch the ignition to off.
•  Inspect the instrument cluster connector terminals for poor connection (such as damaged/pulled -out pins, and corrosion)
•  Are the terminals normal?
Yes
Go to the next step.
No
Repair or replace the terminal.
9
•  Disconnect the negative battery cable.
•  Measure the resistance between the instrument cluster connector terminals 2X and 2W.
•  Is the resistance 114—126 ohms?
Yes
Inspect the wiring harness and CAN system-related module.
Repair or replace the malfunctioning part.
No
Replace the instrument cluster.