SAAB WIS ONLINE

B2371

Read the instructions below then start the fault diagnostic procedure.

Symptom: Steering wheel switch faulty.

B2371


Steering wheel controls. Open circuit/Faulty.


Fault symptoms

Steering wheel switch faulty.

Condition

Open circuit: resistance in the circuit higher than 8 kohm.

Diagnostic help

The steering wheel controls can be read using Tech 2.

The buttons (9 series-coupled resistors) receive a +5 V power supply from SID. When a button is pressed, the corresponding resistor is grounded, which results in the actual current.

Check the wiring harness

Jiggle the wiring harness at several points and in different directions to detect intermittent breaks and short circuits. Check switches, connectors and crimp connections for oxidation, withdrawn pins and pin clamping force.