U1301

Diagnostic Chart:

Schematic:

The body control module (BCM) and the PCM (L61) monitors the Class II data link for short to battery voltage conditions. Devices on the Class II data link are connected in a ring configuration.

DTC Parameters
^ Ignition On.
^ Circuit 1807 shorted to voltage.
^ Conditions exist for greater than 2 seconds.

Diagnostic AIDS
^ Inspect wiring harness for damage. Check for broken or chaffed insulation.
^ If fault is suspected to be intermittent, wiggling harness wiring may help in locating fault.