Diagnostic Test
- CHECK FOR AN ACTIVE DTC
- Turn the ignition on.
- With the scan tool, read and record DTCs and Freeze Frame data on the repair order.
Is the DTC active or pending?
Yes
- Go To 2
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
- CHECK FOR HIGH RESISTANCE IN THE (F851) 5-VOLT SUPPLY CIRCUIT
- Turn the ignition off.
- Disconnect the FRP Sensor harness connector.
- Disconnected PCM C2 harness connector.
- Measure the resistance of the (F851) 5-Volt Supply circuit between the FRP Sensor harness connector and the PCM C2 harness connector.
Is the resistance below 3.0 Ohms?
Yes
- Go To 3
No
- Repair the high resistance in the (F851) 5-Volt Supply circuit.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
- CHECK FOR HIGH RESISTANCE IN THE (K162) FUEL RAIL PRESSURE SIGNAL 2 CIRCUIT
- Measure the resistance of the Fuel Rail Pressure Sensor (K162) Signal 2 circuit between the FRP Sensor harness connector and the PCM C2 harness connector.
Is the resistance below 3.0 Ohms?
Yes
- Go To 4
No
- Repair the high resistance in Fuel Rail Pressure Sensor (K162) Signal 2 circuit.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
- Measure the resistance of the Fuel Rail Pressure Sensor (K162) Signal 2 circuit between the FRP Sensor harness connector and the PCM C2 harness connector.
- CHECK FOR HIGH RESISTANCE IN THE (K917) SENSOR GROUND CIRCUIT
- Measure the resistance of the (K917) Sensor Ground circuit between the FRPS harness connector and the PCM C2 harness connector.
Is the resistance below 3.0 Ohms?
Yes
- Replace the Fuel Rail Pressure Sensor in accordance with the Service Information.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
No
- Repair the high resistance in the (K917) Sensor Ground circuit.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
- Measure the resistance of the (K917) Sensor Ground circuit between the FRPS harness connector and the PCM C2 harness connector.