CIM / U2100 0F

/ 9-3 (9440) / 2006 / DTCs / CIM / U2100 0F

General Bus Fault.

Fault symptom

Intermittent actuation of the following functions:

Start

Central Locking

Instruments

Air Condition Control

Radio

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Ignition ON.

Voltage is over 9V but under 16V

Fault criteria:

No bus communication

The cause of the fault is a short circuit of the I-bus anywhere in the connecting wiring harness or internally in a connecting control module.

System reaction to a fault:

None

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.

•	Faults in the control module female connector can be the cause of the DTC. Check the connector with respect to oxidation, depressed pins and pin clamping force.

Diagnostic help

If the DTC is stored and read with the diagnostic instrument, it indicates intermittent bus lead fault.

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