Service Information
- Perform the Diagnostic System Check prior to using this diagnostic procedure:Diagnostic System Check - Vehicle
- Review the description of Strategy Based Diagnosis:Strategy Based Diagnosis
- An overview of each diagnostic category can be found here:Diagnostic Procedure Instructions
- DTC P1178
Fuel Pump Driver Control Module Fuel Level Sensor 1 Internal Supply Circuit
- DTC P1179
Fuel Pump Driver Control Module Fuel Level Sensor 2 Internal Supply Circuit
Component | Description |
|---|---|
K111 Fuel Pump Driver Control Module | The control module K111 supplies the fuel pump with a PWM signal in order to achieve the desired fuel line pressure. |
- KR75 Engine Controls Ignition Relay=On
- DTC U0076 = Not set
- Ignition Voltage=Greater than 11 V
Frequency the DTC runs=Continuously—After the running conditions are met
Conditions for Setting the DTCP1178Fuel Pump Driver Control Module Fuel Level Sensor 1 Internal Supply=Malfunction—For greater than 1 s
P1179Fuel Pump Driver Control Module Fuel Level Sensor 2 Internal Supply=Malfunction—For greater than 1 s
Actions Taken When the DTC SetsDTCs listed in the DTC Descriptor category=Type A DTC
Conditions for Clearing the DTCDTCs listed in the DTC Descriptor category=Type A DTC
Reference InformationConnector End View Reference
Master Electrical Component List
Electrical Information Reference- Circuit Testing
- Connector Repairs
- Testing for Intermittent Conditions and Poor Connections
- Wiring Repairs
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool ReferenceCircuit/System Verification- Ignition » On / Vehicle » In Service Mode
- Verify DTC P1178, P1179 is not set
- If the DTC is set
Replace the component:K111 Fuel Pump Driver Control Module
- If the DTC is not set
- All OK.
Perform the Diagnostic Repair Verification after completing the repair:Diagnostic Repair Verification
For control module replacement, programming, and setup refer to:Control Module References