Section 12 (3.0L - DTCS P0641-00 To P0652-00)
WARNING: This page is about a different car, the 2024 Jeep Grand Wagoneer L and 2024 Jeep Grand Wagoneer. However, it is still accessible from the selected car via links, so may be relevant.
- DTC Troubleshooting
- P0641-00-Sensor Reference Voltage 1 Circuit
- P0642-00-Sensor Reference Voltage 1 Circuit Low
- P0643-00-Sensor Reference Voltage 1 Circuit High
- P0645-00-A-C Clutch Relay Control Circuit
- P0646-00-A-C Control Circuit Low
- P0647-00-A-C Control Circuit High
- P064A-00-Fuel Pump Control Module 1
- Known Issues - FPCM System
- FPCM System Operation
- Functional Description- Fuel Pump Control Module (FPCM) And Fuel Pump
- Functional Description - Powertrain Control Module (Pcm)
- Technical Data-Fuel System Pressure Specifications
- When Monitored
- Set Condition
- Default Action
- Possible Causes
- Diagnostic Overview-Fuel Pump Control Module
- Preliminary Diagnostic Checks
- Check For An Active Or Intermittent Condition
- Diagnostic Test - Fuel Pump Control Performance Faults (P025B, P027B, P064A, P2635, P26EA)
- Powertrain Verification Test
- P064D-00-Internal Control Module 02 Sensors Processor Performance - Bank 1
- P064E-00-Internal Control Module 02 Sensors Processor Performance-Bank 2
- P0651-00-Sensor Reference Voltage 2 Circuit
- P0652-00-Sensor Reference Voltage 2 Low