Problem Symptoms Table
WARNING: This page is about a different car, the 2002 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
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 table below and proceed to the relevant troubleshooting procedure. See PROBLEM SYMPTOMS table.
NOTE:
- When replacing skid control ECU, sensor or etc., turn the ignition switch OFF.
- When replacing steering angle, master cylinder pressure, yaw rate, deceleration sensors or/and the ECU, make sure to perform steering angle, master cylinder pressure, yaw rate, deceleration sensors zero point calibration. See step 6 under PRE-CHECK.PROBLEM SYMPTOMS
Symptom/Suspect Area Refer To ABS Does Not Operate (1) Check The DTC Reconfirming That The Normal Code Is Output PRE-CHECK IG Power Source Circuit DTC C1241/41 IG POWER SOURCE CIRCUIT Speed Sensor Circuit DTC C0200/31-C0215/34 SPEED SENSOR CIRCUIT Check The Hydraulic Circuit For Leakage CHECK FOR FLUID LEAKAGE ABS Does Not Operate Efficiently (1) Check The DTC Reconfirming That The Normal Code Is Output PRE-CHECK Speed Sensor Circuit DTC C0200/31-C0215/34 SPEED SENSOR CIRCUIT Stop Light Switch Circuit DTC C1249/49 STOP LIGHT SWITCH CIRCUIT Check The Hydraulic Circuit For Leakage CHECK FOR FLUID LEAKAGE ABS Warning Light Abnormality ABS Warning Light Circuit ABS WARNING LIGHT CIRCUIT Skid Control ECU See ELECTRONIC CIRCUIT INSPECTION PROCEDURE Brake Warning Light Abnormal BRAKE Warning Light Circuit BRAKE WARNING LIGHT CIRCUIT Skid Control ECU See ELECTRONIC CIRCUIT INSPECTION PROCEDURE Translate ECU - DTC Check Cannot Be Done (2) ABS Warning Light Circuit ABS WARNING LIGHT CIRCUIT Tc Terminal Circuit TC TERMINAL CIRCUIT VSC TRAC Warning Light Circuit VSC TRAC WARNING LIGHT CIRCUIT Speed Sensor Signal Check Cannot Be Done Ts Terminal Circuit TS TERMINAL CIRCUIT Skid Control ECU See ELECTRONIC CIRCUIT INSPECTION PROCEDURE TRAC Does Not Operate (1) Check The DTC, Reconfirming That The Normal Code Is Output PRE-CHECK IG Power Source Circuit DTC C1241/41 IG POWER SOURCE CIRCUIT Check The Hydraulic Circuit For Leakage CHECK FOR FLUID LEAKAGE Speed Sensor Circuit DTC C0200/31-C0215/34 SPEED SENSOR CIRCUIT VSC Does Not Operate (1) Check The DTC, Reconfirming That The Normal Code Is Output PRE-CHECK IG Power Source Circuit DTC C1241/41 IG POWER SOURCE CIRCUIT Check The Hydraulic Circuit For Leakage CHECK FOR FLUID LEAKAGE Speed Sensor Circuit DTC C0200/31-C0215/34 SPEED SENSOR CIRCUIT Deceleration Sensor Circuit DTC C1232/32 DECELERATION SENSOR CIRCUIT Yaw Rate Sensor Circuit DTC C1234/34 YAW RATE SENSOR CIRCUIT Steering Angle Sensor Circuit DTC C1231/31 STEERING ANGLE SENSOR CIRCUIT Master Cylinder Pressure Sensor Circuit DTC C1360/61 MASTER CYLINDER PRESSURE SENSOR CIRCUIT VSC TRAC Warning Light Abnormal VSC TRAC Warning Light Circuit VSC TRAC WARNING LIGHT CIRCUIT Skid Control ECU See ELECTRONIC CIRCUIT INSPECTION PROCEDURE SLIP Indicator Light Abnormal SLIP Indicator Light Circuit SLIP INDICATOR LIGHT CIRCUIT Skid Control ECU See ELECTRONIC CIRCUIT INSPECTION PROCEDURE VSC OFF (TRAC OFF) Indicator Light Abnormal VSC OFF (TRAC OFF) Indicator Light Circuit VSC OFF (TRAC OFF) INDICATOR LIGHT, VSC OFF (TRAC OFF) SWITCH CIRCUIT. VSC OFF (TRAC OFF) Switch Circuit VSC OFF (TRAC OFF) INDICATOR LIGHT, VSC OFF (TRAC OFF) SWITCH CIRCUIT. Skid Control ECU See ELECTRONIC CIRCUIT INSPECTION PROCEDURE (1) When the following are all normal and the problem is still occurring, replace the Skid Control ECU. (2) If ABS warning light circuit and Tc terminal circuit are normal and problem is still occurring, replace Skid Control ECU.