MIU / B1020 04
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Warning lamp does not illuminate/remains on.
Passenger Seat Belt Warning LED Circuit, open/short
Fault symptom
Warning lamp does not illuminate/remains on.
On-board diagnosis
Type of diagnosis:
Enable criteria:
| Sensor for passenger seat cushion must be actuated. |
| Output to lamp is active. |
Fault criteria:
| Current in the circuit is less than 19 mA or greater than 127 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:
| Electrical fault in connecting leads or component. |
Functions in the diagnostic tool related to the fault:
| (See also description of readings/activations in diagnostic tool) |
