Fault interpretation
| DF001 PRESENT | CONTROL UNIT 1.DEF: Internal electronic fault |
INSTRUCTIONS
Nothing to report.
1.DEF
INSTRUCTIONS
Nothing to report.
If the fault appears, contact the Techline.
2.DEF
INSTRUCTIONS
Priority when handling multiple faults: apply first the treatment for faults DF008 and DF009 "Sensor circuits" if they are present or stored.
Recalibrate the module using command CF001 "Module calibration". Calibration conditions: no sensor or actuator faults.
Repair if necessary. |
| The module initialises: it stores the reference heights and positions the actuators. |
| If the fault reappears, contact the Techline. |
AFTER REPAIR
Deal with any other faults.
Clear stored faults and adjust the headlamp height using the method described in the help.
The headlamp height adjustment must be carried out before the module calibration.
Switch off the lighting and carry out a road test, followed by a check with the diagnostic tool.
3.DEF
INSTRUCTIONS
Nothing to report.
| "Vehicle type" configuration not carried out. Check the module configuration in the configuration read menu LC001 "Vehicle type". No fault present (stored faults: clear fault memory). Calibrate the control unit using command CF003 "Vehicle type". The control unit performs initialization: it stores the reference height and moves the actuators to maximum rod position. |
| If the fault reappears, contact the Techline. |
4.DEF
INSTRUCTIONS
INSTRUCTIONS: Nothing to report.
"Module address" configuration C not carried out.Check the control unit configuration in the configuration read menu LC009 "Control unit address".
The fault appears after replacing a control unit. Configure the control unit address using command CF004 "Control unit address" (left or right assignment).
AFTER REPAIR
Deal with any other faults.
Clear stored faults and adjust the headlamp height using the method described in the help.
The headlamp height adjustment must be carried out before the module calibration.
Switch off the lighting and carry out a road test, followed by a check with the diagnostic tool.
| DF008 PRESENT OR STORED | FRONT HEIGHT SENSOR CIRCUIT 1.FAULT: Permanently low level |
INSTRUCTIONS
Conditions for applying diagnosis on stored fault: The fault reappears as present following:
- clearing of the fault.
1.DEF
INSTRUCTIONS
Without.
| Check the connector of the Xenon lamp control unit. Repair if necessary. |
| Check the connector of the front sensor. Repair if necessary. |
| Check the condition of the front sensor connection harness (pinched, broken, etc.). Repair if necessary. |
| Check the continuity and insulation to ground of the wiring between: Front height sensor pin 4 → Pin 6 of the left headlamp connector Replace the sensor if necessary. |
| If the fault persists, contact the Techline. |
AFTER REPAIR
Deal with any other faults.
Clear stored faults and adjust the headlamp height using the method described in the help.
The headlamp height adjustment must be carried out before the module calibration.
Switch off the lighting and carry out a road test, followed by a check with the diagnostic tool.
2.DEF
INSTRUCTIONS
Nothing to report.
| Check the mechanical link between the sensor and the rear suspension via the lever arm and the link rod. Repair if necessary. |
| Check the condition of the link rod. Replace if necessary. |
| Check the condition of the rear sensor bracket and the upper and lower stops. Replace if necessary. |
| Monitor PR002 "Front sensor signal" to check signal consistency. Check the condition of the connector, wiring and conduit of the front sensor; repair if necessary. |
| If the sensor shows no mechanical fault, contact Techline. |
AFTER REPAIR
Deal with any other faults.
Clear stored faults and adjust the headlamp height using the method described in the help.
The headlamp height adjustment must be carried out before the module calibration.
Switch off the lighting and carry out a road test, followed by a check with the diagnostic tool.
3.DEF
INSTRUCTIONS
Nothing to report.
| Read faults on the other control unit (if common fault). |
| Check the condition and connection of the Xenon lamp control unit connector. Repair if necessary. |
| Check the condition and connection of the front sensor. Repair if necessary. |
| Check the condition of the front sensor connection harness (pinched, broken, etc.). Repair if necessary. |
| Check PR031 "Sensor supply voltage". Check for +12 V at fuse F7 (7.5 A) on the front height sensor supply, pin 5. Check the continuity and insulation of the wiring between:Front height sensor pin 5 → Pin 5 of the brown connector of the protection and switching unit Check continuity between body ground and pin 1 of the front height sensor connector. Repair if necessary. |
AFTER REPAIR
Deal with any other faults.
Clear stored faults and adjust the headlamp height using the method described in the help.
The headlamp height adjustment must be carried out before the module calibration.
Switch off the lighting and carry out a road test, followed by a check with the diagnostic tool.
| DF009 PRESENT OR STORED | REAR HEIGHT SENSOR CIRCUIT 1.FAULT: Permanently low level |
INSTRUCTIONS
Conditions for applying diagnosis on stored fault: If the fault reappears as stored following:
- clearing of the fault.
1.DEF
INSTRUCTIONS
Without.
| Read faults on the other control unit (if common fault). |
| Check the connector of the Xenon lamp control unit. Repair if necessary. |
| Check the connector of the front sensor. Repair if necessary. |
| Check the condition of the front sensor connection harness (pinched, broken, etc.). Repair if necessary. |
| Check the continuity and insulation to ground of the wiring between: Rear height sensor pin 4 → Pin 6 of the left headlamp control unit connector Replace the sensor if necessary. |
| If the fault persists, contact the Techline. |
AFTER REPAIR
Deal with any other faults.
Clear stored faults and adjust the headlamp height using the method described in the help.
The headlamp height adjustment must be carried out before the module calibration.
Switch off the lighting and carry out a road test, followed by a check with the diagnostic tool.
2.DEF
INSTRUCTIONS
Nothing to report.
| Check the mechanical link between the sensor and the rear suspension via the lever arm and the link rod. Repair if necessary. |
| Check the condition of the link rod. Replace if necessary. |
| Check the condition of the rear sensor bracket and the upper and lower stops. Replace if necessary. |
| Monitor PR002 "Rear sensor signal" to check for signal inconsistency. Check the condition of the connector, wiring and conduit of the rear sensor; repair if necessary. |
| If the sensor shows no mechanical fault, contact Techline. |
AFTER REPAIR
Deal with any other faults.
Clear stored faults and adjust the headlamp height using the method described in the help.
The headlamp height adjustment must be carried out before the module calibration.
Switch off the lighting and carry out a road test, followed by a check with the diagnostic tool.
3.DEF
INSTRUCTIONS
Nothing to report.
| Check the connection of the Xenon lamp control unit connector. Repair if necessary. |
| Check the connection of the rear sensor connector. Repair if necessary. |
| Check the condition of the rear sensor connection harness (pinched, broken, etc.). Repair if necessary. |
| Check PR031 "Sensor supply voltage". Check for +12 V at fuse F7 (7.5 A) on the rear height sensor supply, pin 5. Check the continuity and insulation of the wiring between:Rear height sensor pin 5 → Pin 5 of the brown connector of the protection and switching unit Check continuity between body ground and pin 1 of the rear height sensor connector. Repair if necessary. |
AFTER REPAIR
Deal with any other faults.
Clear stored faults and adjust the headlamp height using the method described in the help.
The headlamp height adjustment must be carried out before the module calibration.
Switch off the lighting and carry out a road test, followed by a check with the diagnostic tool.
4.DEF
INSTRUCTIONS
Nothing to report.
| Read faults on the other control unit (if common fault). |
| Check the connector of the Xenon lamp control unit. Repair if necessary. |
| Check the connection of the rear sensor connector. Repair if necessary. |
| Check the condition of the rear sensor connection harness (pinched, broken, etc.). Repair if necessary. Check the continuity and insulation from +12 V of the wiring between:Rear height sensor pin 4 → Pin 6 of the left headlamp control unit connector Replace the sensor if necessary. |
| If the fault persists, contact the Techline. |
AFTER REPAIR
Deal with any other faults.
Clear stored faults and adjust the headlamp height using the method described in the help.
The headlamp height adjustment must be carried out before the module calibration.
Switch off the lighting and carry out a road test, followed by a check with the diagnostic tool.
| DF013 PRESENT OR STORED | VEHICLE SPEED INFORMATION FAULT: Inconsistent sensor signal |
INSTRUCTIONS
Conditions for applying diagnosis on stored fault: If the fault reappears as stored following:
- clearing of the fault.
Set the switch to the low beam position.
| This fault will be declared present after an excessively high frequency appears on the vehicle speed information line. Check the continuity and insulation to +12 V and to ground on the vehicle speed information line. Vehicle speed between: Pin 7 of the left headlamp black connector → Pin 23 of the anti-lock braking control unit Replace the sensor if necessary. |
| If the vehicle speed information line is operating correctly, then perform a complete diagnosis of the Anti-lock Braking - Dynamic Stability Control system. |
| If the problem persists, contact the Techline. |
AFTER REPAIR
Deal with any other faults.
Clear stored faults and adjust the headlamp height using the method described in the help.
The headlamp height adjustment must be carried out before the module calibration.
Switch off the lighting and carry out a road test, followed by a check with the diagnostic tool.
| DF018 PRESENT OR STORED | ACTUATORS FAULT: Open circuit, short circuit to ground or +12 V |
INSTRUCTIONS
Conditions for applying diagnosis on stored fault: If the fault appears as present following:
- clearing of the fault,
- ignition off and on, followed by low beam headlamps switching on
Use command AC011 "Headlamp actuator control" to check their correct operation.
| Left headlamp | Check the headlamp that does not perform calibration using the following checks:
ECU connector pin 11 → Actuator connector pin 1 If everything is correct, replace the headlamp. |
| If the problem persists, contact the Techline. |
AFTER REPAIR
Deal with any other faults.
Clear stored faults and adjust the headlamp height using the method described in the help.
The headlamp height adjustment must be carried out before the module calibration.
Switch off the lighting and carry out a road test, followed by a check with the diagnostic tool.
| Right headlamp | Check the headlamp that does not perform calibration using the following checks. Check the continuity of the control unit and actuator connections in the headlamp. Check the insulation and continuity of the wiring:ECU connector pin 11 → Actuator connector pin 1 If everything is correct, replace the headlamp. |
| If the problem persists, contact the Techline. |
AFTER REPAIR
Deal with any other faults.
Clear stored faults and adjust the headlamp height using the method described in the help.
The headlamp height adjustment must be carried out before the module calibration.
Switch off the lighting and carry out a road test, followed by a check with the diagnostic tool.
| DF020 PRESENT OR STORED | HID LAMP POWER UNIT FAULT: Open circuit, short circuit to ground or +12 V |
INSTRUCTIONS
Conditions for applying the stored fault diagnosis: If the fault reappears after:
- clearing of the fault.
| Left headlamp | Check the lamp connection and connectors. Replace the lamp if necessary. |
| Check the high-voltage harness connectors. Repair if necessary. |
|
| Check the insulation and continuity of the harness connections: Black connector pin 1 → Brown connector pin 1 Repair if necessary. Replace the harness if necessary. |
|
| If the problem persists, contact the Techline. | |
| Right headlamp | Check the lamp connection and connectors. Replace the lamp if necessary. |
| Check the high-voltage harness connectors. Repair if necessary. |
|
| Check the insulation and continuity of the harness connections: Black connector pin 1 → Brown connector pin 1 Repair if necessary. Replace if necessary. |
|
| If the problem persists, contact Techline. |
AFTER REPAIR
Deal with any other faults.
The headlamp height adjustment must be carried out before the module calibration.
Switch off the lighting and carry out a road test, followed by a check with the diagnostic tool.
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