Chart 14
Instrumentation:
- Tachometer Inoperative
- Speedometer Inoperative
- Boost Gauge indicates higher than normal boost (supercharger applications)
- Fuel Gauge Inoperative
| SYSTEM/COMPONENT | REFERENCE ( PINPOINT TEST - CNG, FLEX-FUEL & GASOLINE ) unless noted |
|---|---|
| Tachometer Inoperative Applications with CTO circuit from PCM pin 48: CTO circuit from PCM |
GO to H: Tachometer Signal Output CTO STEP JH1. |
| Speedometer/odometer Inoperative | Applications with Manual Shift On The Fly (MSOF) transfer case using a Transfer Case Speed Sensor (TCSS): GO to P: Vehicle Speed Sensor (VSS)/Transfer Case Speed Sensor (TCSS) STEP DP9. Applications with manual transmissions using a Vehicle Speed Sensor (VSS): GO to P: Vehicle Speed Sensor (VSS)/Transfer Case Speed Sensor (TCSS) STEP DP1. Applications with manual transmissions using an Output Shaft Speed (OSS) Sensor: GO to J: Output Shaft Speed (OSS) Sensor Introduction STEP TJ1. |
| Boost Gauge indicates higher than normal boost Supercharger bypass control Intercooler system |
Supercharger bypass control: GO to J: Supercharger Bypass Control STEP KJ1. Intercooler system: GO to P: Charge air cooler (CAC) pump STEP KP8. |
| Fuel Gauge Inoperative Fuel Gauge always indicates full or empty |
For vehicles with hardwire circuit input to PCM (E-Series, Explorer Sport Trac, Ranger, Crown Victoria, Grand Marquis, Marauder): GO to .X: Evaporative Emission (EVAP) Monitor and System STEP HX40 All others: REFER to the appropriate INSTRUMENT CLUSTER article, fuel level indicator or Rear Electronic Module diagnosis. |
| Instrumentation | Instrument Cluster - Refer to the appropriate INSTRUMENT CLUSTER article. |