REC / B3887 04
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Message appears in display.
Turn Indicator Left, Trailer Circuit, Open
Fault symptom
Message appears in display.
On-board diagnosis
Type of diagnosis:
Fault criteria:
| Current consumption is below 50 mA. |
Checking the wiring harness
Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.
Diagnostic help
Diagnosis regards:
| The DTC can be generated if the trailer module has been fitted and the software in the REC has not been updated. |
| Fault in wiring harness between trailer module and trailer connector. |
| Fault in trailer electrical system. |
Functions in the diagnostic tool related to the fault:
