Test Point 9

Test point 9
Data lead, instrument
cluster-PCM
Open circuit/short to B+
Short to ground
Signal disturbance
Fault code 28

Open circuit/short to B+

1. Pull off plug I on the display and operator control unit.

2. Pull off plug III on the instrument cluster.

3. Check lead from plug I pin 21 to plug III pin 11 for continuity and short to B+.

Short to ground

1. Pull off plug I on the display and operator control unit.

2. Pull off plug III on the instrument cluster.

3. Check lead from plug I pin 21 to plug III pin 11 for short to ground.

Signal disturbance

Check lead from plug I pin 21 to plug III pin 11 for short with other leads.