Fault Remedies
NoteWhen checking for continuity, ensure that all connectors are tight and undamaged. Inspect that all terminals are fully seated in their connectors and properly crimped to the wire
Fault Code: 1111 Internal fault in the ECU
Repair Procedure:
1. Erase the fault code and test drive to see if the fault code returns.
2. If the fault code returns, fit a new ECU.
Fault Code: 1112 Faulty left front inlet valve (IFL), broken/short circult in the valves wiring harness or faulty ECU
Repair Procedure:
1. Check the wiring and the IFL valve for continuity by measuring the resistance between pins 35 and 11 on the ECU. The resistance should be 5-7 Ohms. If not:
A. Check the wiring harness for continuity between pin 35 on the ECU and pin 2 on the valve block connector.
B. Check for continuity through the IFL valve by measuring the resistance between pin 6 and pin 7 on the valve block. The resistance should be 5-7 Ohms. If not, replace the valve block.
C. Check for continuity between pin 1 on the valve block connector and pin 11 on the ECU.
2. Erase the fault code and test drive to see if the fault code returns.
3. If the fault code returns, fit a new ECU.
Fault Code: 1114 Faulty right front inlet valve (IFR), broken/short circuit in the valves wiring harness or faulty ECU.
Repair Procedure:
1. Check the wiring and the IFR valve for continuity by measuring the resistance between pins 15 and 11 on the ECU. The resistance should be 5-7 Ohms. If not:
A. Check the wiring harness for continuity between pin 15 on the ECU and pin 7 on the valve block connector.
B. Check for continuity through the IFR valve by measuring the resistance between pin 1 and pin 7 on the valve block. The resistance should be 5-7 Ohms. If not, replace the valve block.
C. Check for continuity between pin 1 on the valve block connector and pin 11 on the ECU.
2. Erase the fault code and test drive to see if the fault code returns.
3. If the fault code returns, fit a new ECU.
Fault Code: 1122 Faulty rear Inlet valve (IR), broken/ short circuit in the valves wiring harness or faulty ECU.
Repair Procedure:
1. Check the wiring and the IR valve for continuity by measuring the resistance between pins 17 and 11 on the ECU. The resistance should be 5-7 Ohms. If not:
A. Check the wiring harness for continuity between pin 17 on the ECU and pin 5 on the valve block connector.
B. Check for continuity through the IR-valve by measuring the resistance between pin 3 and pin 7 on the valve block. The resistance should be 5-7 Ohms. If not, replace the valve block.
C. Check for continuity between pin 1 on the valve block connector and pin 11 on the ECU.
2. Erase the fault code and test drive to see if the fault code returns.
3. If the fault code returns, fit a new ECU.
Fault Code: 1132 Faulty left front outlet valve (OFL), broken/short-circuit in the valves wiring harness or faulty ECU.
Repair Procedure:
1. Check the wiring and the OFL valve for continuity by measuring the resistance between pins 16 and 11 on the ECU. The resistance should be 3-4 Ohms. If not:
A. Check the wiring harness for continuity between pin 16 on the ECU and pin 3 on the valve block connector.
B. Check for continuity through the OFL valve by measuring the resistance between pin 5 and pin 7 on the valve block. The resistance should be 3-4 Ohms. If not, replace the valve block.
C. Check for continuity between pin 1 on the valve block connector and pin 11 on the ECU.
2. Erase the fault code and test drive to see if the fault code returns.
3. If the fault code returns, fit a new ECU.
Fault Code: 1134 Faulty right front outlet valve (OFR), broken/short-circult in the valves wiring harness or faulty ECU.
Repair Procedure:
1. Check the wiring and the OFR valve for continuity by measuring the resistance between pins 34 and 11 on the ECU. The resistance should be 3-4 Ohms. If not:
A. Check the wiring harness for continuity between pin 34 on the ECU and pin 6 on the valve block connector.
B. Check for continuity through the OFR valve by measuring the resistance between pin 2 and pin 7 on the valve block. The resistance should be 3-4 Ohms. If not, replace the valve block.
C. Check for continuity between pin 1 on the valve block connector and pin 11 on the ECU.
2. Erase the fault code and test drive to see if the fault code returns.
3. If the fault code returns, fit a new ECU.
Fault Code: 1142 Faulty rear outlet valve (OR), broken/short-circult in the valves wiring harness or faulty ECU.
Repair Procedure:
1. Check the wiring and the OR valve for continuity by measuring the resistance between pins 33 and 11 on the ECU. The resistance should be 3-4 Ohms. If not:
A. Check the wiring harness for continuity between pin 33 on the ECU and pin 4 on the valve block connector.
B. Check for continuity through the OR valve by measuring the resistance between pin 4 and pin 7 on the valve block. The resistance should be 3-4 Ohms. If not, replace the valve block.
C. Check for continuity between pin 1 on the valve block connector and pin 11 on the ECU.
2. Erase the fault code and test drive to see if the fault code returns.
3. If the fault code returns, fit a new ECU.
Fault Code: 1222 Faulty main valve (MV), broken/ short-circuit in the valves wiring harness or faulty ECU.
Repair Procedure:
1. Check the wiring and the Main Valve for continuity by measuring the resistance between pin 18 on the ECU and ground. The resistance should be 2-5 Ohms. If not:
A. Check the wiring harness for continuity between pin 18 on the ECU and pin 1 on the Main Valve connector.
B. Check for continuity through the Main Valve by measuring the resistance between pin 1 and pin 2 on the Main Valve block. The resistance should be 2-5 Ohms. If not, replace the Main Valve.
C. Check for continuity between pin 2 on the Main Valve and the grounding point on the hydraulic unit.
2. Erase the fault code and test drive to see if the fault code returns.
3. If the fault code returns, fit a new ECU.
Fault Code: 1233 Left front wheel sensor (298A), broken/short-circult in the wiring or the wheel sensor, faulty tooth-wheel, or sensor not securely fastened.
Repair Procedure:
1. Check that the wheel sensor is securely fastened.
2. Check the continuity in the wiring and the wheel sensor by measuring the resistance between pins 5 and 23 on the ECU. The resistance should be 800-1400 Ohms. If not:
A. Check for continuity in the wiring between pin 5 at the ECU and pin 2 at the 2-pole connector.
B. Check for continuity in the wiring between pin 23 at the ECU and pin 3 at the 2-pole connector.
C. Check for continuity through the wheel sensor by measuring the resistance between pins 2 and 3 at the 2-pole connector for the sensor. The resistance should be 800-1400 Ohms. OL indicates a broken circuit, whereas 0 Ohms indicates a short circuit from the center wire to the shielding.
3. Check for continuity between pin 1 at the ECU and grounding point 65.
4. Check that the tooth wheel is undamaged and securely attached by removing the wheel sensor and looking down its bore while rotating the wheel hub by hand. Also, check that there is not any excess bearing play or axle vibrations.
5. Replace the wheel sensor.
6. Erase the fault code and test drive to see if the fault code returns.
7. If the fault code returns, fit a new ECU.
Fault Codes: 1241, 1243, 1211 Wheel Sensors
Other wheel sensor codes and pin designations are as follows:
Fault Tooth Wheel ECU
Code Wheel Sensor
1241 Right Front 298B Pins 7 and 25
1243 Right Rear 298D Pins 4 and 22
1311 Left Rear 298C Pins 6 and 24
Fault Code: 1312 Current leakage from battery (+ 12V).
Repair Procedure:
1. Check the circuit between pin 10 on the ECU connector- pins 3 and 5 on the pressure switchpins 1 and 2 on the brake fluid level switchand pin 9 on the ECU connector with regard to current leakage from battery (+ 12V).