Antilock Brakes / Traction Control Systems

Code 2-6
Indicates a Stop Lamp Switch (X168) failure. Start diagnosis at Step 23A. 23A

Code 2-7
Is set when a continuous battery supply to the ECU is detected to a shorted Load Relay. Start diagnosis at Step 1A. 1A

Code 2-8
Is set when no voltage is applied from the Load Relay to the ECU. Start diagnosis at Step 1A. 1A

Code 2-12
Indicates that a Right Front Wheel Speed Sensor (X158) air gap is too large. Check sensor ring runout and bearing freeplay. Fit a new sensor bushing and refit sensor.

Code 2-13
Indicates that a Left Rear Wheel Speed Sensor (X140) air gap is too large. Check sensor ring runout and bearing freeplay. Fit a new sensor bushing and refit sensor.

Code 2-14
Indicates that a Left Front Wheel Speed Sensor (X137) air gap is too large. Check sensor ring runout and bearing freeplay. Fit a new sensor bushing and refit sensor.

Code 2-15
Indicates that a Right Rear Wheel Speed Sensor (X161) air gap is too large. Check sensor ring runout and bearing freeplay. Fit a new sensor bushing and refit sensor.

Code 3-0
Indicates an open circuit in the right front inlet solenoid valve circuit. Start diagnosis at Test A, Step 18A. 18A

Code 3-1
Indicates an open circuit in the right front outlet solenoid valve circuit. Start diagnosis at Test A, Step 17A. 17A

Code 3-2
Indicates an open circuit in the left front inlet solenoid valve circuit. Start diagnosis at Test A, Step 16A. 16A

Code 3-3
Indicates an open circuit in the left front outlet solenoid valve circuit. Start diagnosis at Test A, Step 15A. 15A

Code 3-4
Indicates an open circuit in the right rear inlet solenoid valve circuit. Start diagnosis at Test A, Step 22A. 22A

Code 3-5
Indicates an open circuit in the right rear outlet solenoid valve circuit. Start diagnosis at Test A, Step 21A. 21A

Code 3-6
Indicates an open circuit in the left rear inlet solenoid valve circuit. Start diagnosis at Test A, Step 20A. 20A

Code 3-7
Indicates an open circuit in the left rear outlet solenoid valve circuit. Start diagnosis at Test A, Step 19A. 19A

Code 3-8
Indicates an open circuit in the isolation inlet solenoid valve circuit. Start diagnosis at Test A, Step 14A. 14A

Code 3-9
Indicates an open circuit in the isolation inlet solenoid valve circuit. Start diagnosis at Test A, Step 13A. 13A

Code 4-0
Indicates a short to ground in the right front inlet solenoid valve circuit. Start diagnosis at Test A, Step 18A. 8A

Code 4-1
Indicates a short to ground in the right front outlet solenoid valve circuit. Start diagnosis at Test A, Step 17A. 17A

Code 4-2
Indicates a short to ground in the left front inlet solenoid valve circuit. Start diagnosis at Test A, Step 16A. 16A

Code 4-3
Indicates a short to ground in the left front outlet solenoid valve circuit. Start diagnosis at Test A, Step 16A. 16A

Code 4-4
Indicates a short to ground in the right rear inlet solenoid valve circuit. Start diagnosis at Test A, Step 22A. 22A

Code 4-5
Indicates a short to ground in the right rear outlet solenoid valve circuit. Start diagnosis at Test A, Step 21A. 21A

Code 4-6
Indicates a short to ground in the left rear inlet solenoid valve circuit. Start diagnosis at Test A, Step 20A. 20A

Code 4-7
Indicates a short to ground in the left rear outlet solenoid valve circuit. Start diagnosis at Test A, Step 19A. 19A

Code 4-8
Indicates a short to ground in the isolation inlet solenoid valve circuit. Start diagnosis at Test A, Step 14A. 14A

Code 4-9
Indicates a short to ground in the isolation outlet solenoid valve circuit. Start diagnosis at Test A, Step 13A. 13A

Code 4-12
Indicates an open in the Right Front Wheel Speed Sensor (X158) wiring. Start diagnosis at Test A, Step 7A. 7A

Code 4-13
Indicates an open in the Left Rear Wheel Speed Sensor (X140) wiring. Start diagnosis at Test A, Step 9A. 9A

Code 4-14
Indicates an open in the Left Front Wheel Speed Sensor (X137) wiring. Start diagnosis at Test A, Step 5A. 5A

Code 4-15
Indicates an open in the Right Rear Wheel Speed Sensor (X161) wiring. Start diagnosis at Test A, Step 11A. 11A

Codes 5-0 through 5-9
Indicate a short to battery voltage in a solenoid valve Circuit between the ABS Booster Unit (Z103) and the Anti-Lock Brake System ECU (Z108). This fault could be intermittent. Check the booster unit's ground strap, the wiring harness and the connectors at the booster unit and the ECU. If all components check OK, replace the ECU. The specific solenoid valve circuit affected is as listed:

5-0 Right Front Inlet
5-1 Right Front Outlet
5-2 Left Front Inlet
5-3 Left Front Outlet
5-4 Right Rear Inlet
5-5 Right Rear Outlet
5-6 Left Rear Inlet
5-7 Left Rear Outlet
5-8 Isolation Inlet
5-9 Isolation Outlet

Code 5-12
Indicates an intermittent open circuit in the Right Front Wheel Speed Sensor (X158). Start diagnosis at Test A, Step 7A. 7A Perform the test while wiggling harness to induce the fault.

Code 5-13
Indicates an intermittent open circuit in the Left Rear Wheel Speed Sensor (X140). Start diagnosis at Test A, Step 9A. 9A Perform the test while wiggling harness to induce the fault.

Code 5-14
Indicates an intermittent open Circuit in the Left Front Wheel Speed Sensor (X137). Start diagnosis at Test A, Step 5A. 5A Perform the test while wiggling harness to induce the fault.

Code 5-15
Indicates an intermittent open circuit in the Right Front Wheel Speed Sensor (X161). Start diagnosis at Test A, Step 5A. 5A Perform the test while wiggling harness to induce the fault.

Codes 6-0 through 6-9
Indicate a short circuit between 2 solenoid valves. Failure codes for both affected valves will be stored. Check to see if the short is located in the wiring harness by measuring for continuity between the circuits with the ABS Booster Unit (Z103) and Anti-Lock Brake System ECU (Z108) disconnected. If OK, check the booster unit and ECU.

6-0 Right Front Inlet
6-1 Right Front Outlet
6-2 Left Front Inlet
6-3 Left Front Outlet
6-4 Right Rear Inlet
6-5 Right Rear Outlet
6-6 Left Rear Inlet
6-7 Left Rear Outlet
6-8 Isolation Inlet
6-9 Isolation Outlet

Codes 6-12 through 6-15
Indicate that the wheel speed sensor has no output signal. This code sets due to a extremely large air gap. Check the affected sensor's mounting and bushing. Replace the sensor if mounting and installation are OK. The specific code and the related wheel speed sensor are:

6-12 Right Front Wheel
6-13 Left Rear Wheel
6-14 Left Front Wheel
6-15 Right Rear Wheel