Test Point 3

Test point 3
Data lead, PCM-navigation unit

Short to ground
Short to B+

Fault code 22

Short to ground
1. Pull off plug II on the display and operator control unit.
2. Pull off plug on the navigation unit.
3. Check lead from navigation unit plug pin 5 to plug II pin 4 for short to ground.

Short to B+
1. Pull off plug II on the display and operator control unit.
2. Pull off plug on the navigation unit.
3. Check lead from navigation unit plug pin 5 to plug II pin 4 for short to B+.