Ground Circuits
Turn ignition off. Disconnect Natural Gas Vehicle Module (NGVM) 60-pin connector. See NGVM LOCATION table. Using DVOM, check continuity between chassis ground and NGVM connector terminals No. 40 and 60. See Fig 1. If continuity exists, see POWER CIRCUITS . If continuity does not exist, repair open in affected ground circuit. See ENGINE PERFORMANCE in SYSTEM WIRING DIAGRAMS article in ELECTRICAL.
NGVM LOCATION
| Application | Location |
|---|---|
| Crown Victoria | Front Center Of Engine Compartment |
| Econoline | Left Side Of Engine Compartment, Near Battery Junction Box |
| F150 Pickup | Front Right Side Of Engine Compartment |