Inspection and Verification

WARNING: This page is about a different car, the 2004 Ford RV Cutaway, 2004 Ford Econoline, 2004 Ford E450 Super Duty, and 2004 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

Verify the customer concern.
Observe the indicators, warning displays, and gauges to determine if they are operating correctly with the ignition switch:
- In RUN with the engine off.
- In START before the ignition switch is released.
- In RUN with the engine running.
Visually inspect for obvious signs of mechanical and electrical damage:
VISUAL INSPECTION CHART

Fig 1: Visual Inspection Chart
Courtesy of FORD MOTOR CO.
If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
If the cause of the concern is not visually evident, connect the diagnostic tool to the data link connector and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle:
- Check that the program card is correctly installed.
- Check the connections to the vehicle.
- Check the ignition switch position.
If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool operating manual.
Carry out the diagnostic tool data link test. If the diagnostic tool responds with:
- SCP, ISO or UBP circuit fault; all electronic control units no response/not equipped, refer to MODULE COMMUNICATIONS NETWORK .
- No response/not equipped for the NGV module, refer to the appropriateINTRODUCTION article.
- No response/not equipped for the instrument cluster, refer to INSTRUMENT CLUSTER- CONVENTIONAL .
- System passed, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs for the NGV module and carry out self-test diagnostics for the instrument cluster.
If the DTCs retrieved are related to the concern, go to the Natural Gas Vehicle (NGV) Module Diagnostic Trouble Code (DTC) Index .
If no DTCs related to the concern are retrieved, GO to SYMPTOM CHART to continue diagnostics.

Natural Gas Vehicle (NGV) Module Diagnostic Trouble Code (DTC) Index

DTC	Description	Source	Action
B1219	Fuel Tank Pressure Sensor Circuit Failure (greater than 4.76 volts)	NGV Module	Go To PINPOINT TEST A: DTC B1219 - FUEL TANK PRESSURE SENSOR CIRCUIT FAILURE HIGH INPUT (GREATER THAN 4.76 VOLTS)/DTC B1220 - FUEL TANK PRESSURE SENSOR CIRCUIT OPEN (LESS THAN 0.24 VOLTS) .
B1220	Fuel Tank Pressure Sensor Circuit Open (less than 0.24 volts)	NGV Module	Go To PINPOINT TEST A: DTC B1219 - FUEL TANK PRESSURE SENSOR CIRCUIT FAILURE HIGH INPUT (GREATER THAN 4.76 VOLTS)/DTC B1220 - FUEL TANK PRESSURE SENSOR CIRCUIT OPEN (LESS THAN 0.24 VOLTS) .
B1222	Fuel Tank Temperature Sensor Circuit Failure (less than 0.195 volts)	NGV Module	Go To PINPOINT TEST C: DTC B1222 - FUEL TANK TEMPERATURE SENSOR CIRCUIT SHORT TO GROUND (LOW INPUT) .
B1223	Fuel Tank Temperature Sensor Circuit Open (greater than 4.585 volts)	NGV Module	Go To PINPOINT TEST B: DTC B1223 - FUEL TANK TEMPERATURE SENSOR CIRCUIT OPEN (GREATER THAN 4.585 VOLTS) .
B1317	Battery Voltage High (greater than 15 volts)	NGV Module	Go To PINPOINT TEST D: DTC B1317 - BATTERY VOLTAGE HIGH (GREATER THAN 15 VOLTS)/DTC B1318 - BATTERY VOLTAGE LOW (LESS THAN 5 VOLTS) .
B1318	Battery Voltage Low (less than 5 volts)	NGV Module	Go To PINPOINT TEST D: DTC B1317 - BATTERY VOLTAGE HIGH (GREATER THAN 15 VOLTS)/DTC B1318 - BATTERY VOLTAGE LOW (LESS THAN 5 VOLTS) .
P0606	ECM/PCM Internal Failure	NGV Module	Go To PINPOINT TEST E: DTC P0606 - ELECTRONIC CONTROL MODULE (ECM) INTERNAL FAILURE .