Problem Symptoms Table
If a normal code is displayed during the DTC check but the problem still occurs, check the circuits for each problem symptom in the order given in the PROBLEM SYMPTOMS table and proceed to the relevant troubleshooting table.
PROBLEM SYMPTOMS
| Symptom | Suspect Area | Refer To |
|---|---|---|
| ABS does not operate | Only when 1 to 4 are all normal but the problem still occurs, replace the ABS & TRAC ECU.
|
PRE-CHECK DTC C1241/41: IG POWER SOURCE CIRCUIT DTC C0200/31-C0215/34: SPEED SENSOR CIRCUIT ON-VEHICLE INSPECTION in ABS & TRAC ACTUATOR - LEXUS article |
| ABS does not operate efficiently | Only when 1 to 4 are all normal but the problem still occurs, replace the ABS & TRAC ECU.
|
PRE-CHECK DTC C0200/31-C0215/34: SPEED SENSOR CIRCUIT DTC C1249/49: Stop Light Switch Circuit ON-VEHICLE INSPECTION in ABS & TRAC ACTUATOR - LEXUS article |
| ABS warning light abnormal |
|
ABS Warning Light Circuit DTC Always ON: ABS & TRAC ECU Malfunction |
| DTC check is impossible | Only when 1 and 2 are all normal but the problem is still occurs, replace the ABS & TRAC ECU.
|
ABS Warning Light Circuit TRAC OFF Indicator, TRAC Cut Switch Circuit Tc Terminal Circuit |
| Speed sensor signal check is impossible |
|
Ts Terminal Circuit DTC Always ON: ABS & TRAC ECU Malfunction |
| TRAC does not operate | Only when inspection circuits for each problem symptom are all normal but the problem still occurs, replace the ABS & TRAC ECU.
|
PRE-CHECK DTC C1241/41: IG Power Source Circuit CHECK FOR FLUID LEAKAGE DTC C0200/31-C0215/34: SPEED SENSOR CIRCUIT |
| SLIP indicator light abnormal | SLIP indicator light circuit | SLIP INDICATOR LIGHT CIRCUIT |
| TRAC OFF indicator light abnormal | Only when inspection circuits for each problem symptom are all normal but the problem still occurs, replace the ABS & TRAC ECU.
|
TRAC OFF Indicator, TRAC Cut Switch Circuit |