Check wiring from DME control module, pin IV/18, to instrument cluster, pin I/16, for short to B+
- Connect special tool 9637 to wiring harness
(DME control module connector).
- Connect voltmeter to pin IV/18 and ground.
- Switch on the ignition.
Display: 0 V
If battery voltage is displayed, check wiring harness for chafing and pinching damage.