Diagnosis System
- DIAGNOSIS
- If the skid control ECU detects a malfunction, the ABS and/or BRAKE warning lights come on in accordance with the trouble area to warn the driver. The table below indicates which lights come on when there is a malfunction in a particular function.TROUBLESHOOTING CHART
Item/Trouble Area ABS System EBD System Skid Control ECU ABS Warning light ◦ ◦ ◦ BRAKE Warning light - ◦ ◦ ◦: Light ON
-: Light OFFHINT:
- The DTCs are simultaneously stored in the memory. The DTCs can be read by connecting Techstream.
- This system has a sensor signal check function (See TEST MODE PROCEDURE ). The DTCs can be read by connecting SST (09843-18043) between terminals TC and CG of the DLC3 and observing the blinking of the ABS warning light, or by connecting Techstream (See DTC CHECK/CLEAR ).
- If the skid control ECU detects a malfunction, the ABS and/or BRAKE warning lights come on in accordance with the trouble area to warn the driver. The table below indicates which lights come on when there is a malfunction in a particular function.
- WARNING LIGHT CHECK
- Release the parking brake.NOTE: When releasing the parking brake, set chocks to hold the vehicle for safety.
HINT:
When the parking brake is applied or the level of the brake fluid is low, the BRAKE warning light comes on.
- Check that the ABS warning light and BRAKE warning light come on when the ignition switch is turned on and go off in about 3 seconds.
HINT:
If the warning lights do not illuminate, confirm whether the bulbs have burned out, and also check the wire harness between the skid control ECU and the combination meter.
If the warning light remains on, troubleshoot the effected light circuit by proceeding to the page indicated below:
TROUBLESHOOTING CHARTTrouble Areas Reference ABS warning light circuit ABS WARNING LIGHT REMAINS ON BRAKE warning light circuit BRAKE WARNING LIGHT CIRCUIT
- Release the parking brake.