Displaying & Reading Trouble Codes

NOTE: This is the only information provided by the manufacturer for reading Diagnostic Trouble Codes for this system.

PRE-CHECK

1. DIAGNOSIS SYSTEM




a. Check the indicator.
When the ignition switch is turned ON, check that the ABS warning light goes on for 3 seconds

HINT: If the indicator check result is not normal, proceed to troubleshooting for the ABS warning light circuit.




b. Check the DTC.

1. Turn the ignition switch ON.
2. Disconnect the short pin from DLC1.
3. Using SST, connect terminals Tc and E1 of DLC1.
SST 09843-18020

4. Read the DTC from the ABS warning light on the combination meter.

HINT: If no code appears, inspect the ABS warning light circuit or diagnostic circuit .




- As an example, the blinking patterns for normal code and codes 11 and 21 are shown in the figure.

5. Codes are explained in the code table.
6. After completing the check, disconnect terminals Tc and E1, and turn off the display.

If 2 or more malfunctions are indicated at the same time the lowest numbered DTC will be displayed 1st.




c. Clear the DTC.

1. Using SST, connect terminals Tc and E1 of DLC1.
SST 09843-18020

2. Turn the ignition switch ON.
3. Clear the DTC stored in ECU by depressing the brake pedal 8 or more times within 5 seconds.
4. Check that the warning light shows the normal code.
5. Remove the SST from the terminals of DLC1.
SST 09843-18020

2. SPEED SENSOR SIGNAL CHECK




Check the speed sensor signal.
1. Turn the ignition switch OFF.
2. Using SST, connect terminals Ts and E1 of DLC1.
SST 09843-18020

3. Start the engine.




4. Check that the ABS warning light blinks.

HINT: If the ABS warning light does not blink, inspect the ABS warning light circuit.

5. Drive vehicle straight forward.

HINT: Drive vehicle faster than 45 km/h (28 mph) for several seconds.

6. Stop the vehicle.
7. Using SST, connect terminals Tc and E1 of DLC1.
SST 09843-18020

8. Read the number of blinks of the ABS warning light.






HINT:
See the list of DTC.
- If every sensor is normal, a normal code is output (A cycle of 0.25 sec. ON and 0.25 sec. OFF is repeating).
- If 2 or more malfunctions are indicated at the same time, the lowest numbered code will be displayed 1st.

DTC Of Speed Sensor Check Function:

DTC of speed sensor check function
* Note Toyota doesn't offer diagnostic charts for these codes and only refers to trouble area.

9. After doing the check, disconnect terminals Ts and E1, Tc and E1 of DLC1, and turn the ignition switch OFF

3. 4WD:
DECELERATION SENSOR CHECK




a. Check the deceleration sensor detection point.

1. Turn the ignition switch OFF.
2. Using SST, connect terminals Ts and E1 of the DLC1.
SST 09843-18020

3. Start the engine.




4. Check that the ABS warning light blinks.

HINT: If the ABS warning light does not blink, inspect the ABS warning light circuit.




5. Jack up the rear side of the vehicle slowly, as shown.

HINT: When measuring the height, measure at the center of the lower body of the vehicle.

6. Check that the ABS warning light blinks.

If the warning light turns on, inspect the deceleration sensor installation. If the sensor installation is OK, replace the deceleration sensor.

7. Jack down the vehicle slowly.




8. Jack up the front side of the vehicle slowly, as shown.

HINT: When measuring the height, measure at the center of the lower body of the vehicle.

9. Check that the ABS warning light blinks.

If the warning light turns on, inspect the deceleration sensor installation. If the sensor installation is OK, replace the deceleration sensor.

10. Jack down the vehicle slowly.




b. Check the deceleration sensor operation.

1. Drive the vehicle straight ahead at about 20 km/h (12.4 mph) or more, lightly depress the brake pedal.
2. Check that there is no change in the warning light pattern.




3. Drive the vehicle straight ahead at about 20 km/h (12.4 mph) or more, and depress the brake pedal moderately.
4. Check that the warning light turns on while braking.




5. Drive the vehicle straight ahead at about 20 km/h (12.4 mph) or more, and depress the brake pedal strongly.
6. Check that the warning light pattern changes while braking, as shown.

If the operation is not as specified, inspect the deceleration sensor installation. If the sensor installation is OK, replace the deceleration sensor.

7. Stop the vehicle and turn the ignition switch OFF.
8. Remove SST from the terminals Ts and E1 of the DLC1.
SST 09843-18020