P1803

/ 9-5 (9600) / 2005 / 4. Transmission / Automatic Transmission / Fault diagnosis, diagnostic trouble codes / P1803

General Bus Fault.

Fault symptoms

CHECK GEARBOX warning lamp is on.

Conditions

Ignition ON

Fault criteria

TCM detects that there is no communication on the bus.

Diagnostic help

Note that if this diagnostic trouble code can be read, the fault is not permanent but has on a previous occasion occurred intermittently. See fault diagnosis under Bus and diagnostic communication.

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