Circuit/System Verification
WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition On/Vehicle In Service Mode
- Verify the scan tool parameter: Fuel Rail Temperature Sensor 1 = -39 to 115°C (-38 to 239°F)
- If not between -39 to 115°C (-38 to 239°F)
Refer to: Circuit/System Testing
- If between -39 to 115°C (-38 to 239°F)
- If not between -39 to 115°C (-38 to 239°F)
- Verify the scan tool parameter: Fuel Rail Temperature Sensor 1 & Fuel Rail Temperature Sensor 2 = Within 10°C (18°F) of each other
- If not within 10°C (18°F) of each other
Refer to: Circuit/System Testing
- If within 10°C (18°F) of each other
- If not within 10°C (18°F) of each other
- Verify the scan tool parameter: Fuel Rail Temperature Sensor 1 = The value should not spike or drop out.
Perform the action while monitoring the parameter:
- Wiggle the harness and connector: B310 Fuel Pressure/Temperature Sensor
- Wiggle the harness and connector: K20 Engine Control Module
- If the value spikes or drops out
Repair as necessary: Wiring / Terminal(s) / Electrical Connector(s)
- If the value does not spike or drop out
- Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
- Verify the DTC does not set.
- If the DTC sets
Refer to: Circuit/System Testing
- If the DTC is not set
- If the DTC sets
- All OK.