B1928

B1928 05

Seat Temperature Sensor Left Circuit, Open/Short to B+







Fault symptom
- Heating in left-hand seat not working.

On-board diagnosis

Type of diagnosis:
- Continuous

Enable criteria:
- Ignition ON.
- Cabin temperature above -10 degree C.

Fault criteria:
- Voltage on control module sensor input exceeds 4.8 V.

System reaction to a fault:
- Heating in the left-hand seat is switched off.

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:

Test value:
- Seat Temperature Left
- Seat Temperature Sensor Left
- Compartment Temperature
(See also description of readings/activations in diagnostic tool)