F13-5/F15-5/F17-5 - Manual Transmission
DTC P0806-P0808
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DTC Descriptors
DTC P0806
-
Clutch Pedal Position (CPP) Sensor Performance
DTC P0807
-
Clutch Pedal Position (CPP) Sensor Circuit Low Voltage
DTC P0808
-
Clutch Pedal Position (CPP) Sensor Circuit High Voltage
Diagnostic Fault Information
Typical Scan Tool Data
Circuit/System Description
The clutch pedal position (CPP) sensor is a three wire sensor, connected to a 5 V reference circuit, a low reference circuit, and a signal circuit. The engine control module (ECM) supplies 5 V to the CPP sensor, and also provides a sensor ground path on the low reference circuit. The CPP sensor sends a voltage signal to the ECM on the signal circuit. The voltage on the signal circuit will vary from a voltage less than or equal to 5 V when the clutch pedal is released, to a voltage less than or equal to 1.5 V when the clutch pedal is applied.
Conditions for Running the DTC
P0806, P0807 and P0808
* DTCs P0642, P0643, P0335, P0336, P0607 or P080A are not set.
* The system voltage is more than 9 V.
* The ignition is in the RUN position.
Conditions for Setting the DTC
P0806
The CPP sensor is stuck in range.
P0807
The CPP sensor voltage is less than 0.1 V for more than 1 s.
P0808
The CPP sensor voltage is more than 5.2 V for more than 1 s.
Action Taken When the DTC Sets
DTC P0806-P0808 are Type A DTCs.
Conditions for Clearing the DTC
DTC P0806-P0808 are Type A DTCs.
Reference Information
Schematic Reference
Manual Transmission Schematics D16/D20 - Manual Transmission
Connector End View Reference
Component Connector End Views Fuel Pump and Level Sensor Assembly
Electrical Information Reference
* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Engine Control Module Scan Tool Information (LUW) Scan Tool Testing and ProceduresEngine Control Module Scan Tool Information (LUV) for scan tool information
Circuit/System Verification
1. If any other DTCs are set, diagnose them first. Refer to Diagnostic Trouble Code (DTC) List - Vehicle Diagnostic Trouble Code (DTC) List - Vehicle.
2. Perform the CPP learn procedure. Refer to Clutch Pedal Position Sensor Learn D16/D20 - Manual Transmission.
• If the Clutch Pedal Position Sensor did not successfully learn
Refer to Circuit/System Testing below.
• the Clutch Pedal Position Sensor did successfully learn
3. Ignition ON, observe the scan tool CPP sensor percent parameter. The percentage should vary from 0 percent when the clutch pedal is released, to 100 percent when the clutch pedal is in the apply position.
• If the CPP sensor percent parameter does not vary or is stuck
Refer to Circuit/System Testing below.
• If the CPP sensor percent parameter does vary
4. After performing the above steps, verify that the DTC does not reset by operating the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions you observe from the Freeze Frame/Failure Records data. If the vehicle passes the Circuit/System Verification procedure, then STOP. Do not perform the Circuit/System Testing or Component Testing as this may result in an unnecessary part replacement. Refer to Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector of the B25B Clutch Pedal Position Sensor.
2. Ignition OFF, test for less than 1 ohms between the low reference circuit terminal C and ground.
• If greater than the specified value
Test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the ECM.
• If less than the specified value
3. Ignition ON, test for 4.8-5.2 V between the 5 V reference circuit terminal A and ground.
• If not within the specified range
Test the 5 V reference circuit for a short to B+, short to ground or an open/high resistance. If the circuit tests normal, replace the ECM.
• If within the specified range
4. Ignition ON, observe the scan tool CPP sensor voltage parameter for 0.1 V.
• If greater than the specified value
Test the signal circuit for a short to voltage. If the circuit tests normal, replace the ECM.
• If equal to or less than the specified value
5. Install a 3 A fused jumper wire between the signal circuit terminal B and the 5 V reference circuit terminal A. Verify that the scan tool CPP sensor parameter is between 4.8-5.2 V.
• If not within the specified range
Test the signal circuit for an open/high resistance. If the circuit tests normal, replace the ECM.
• If within the specified range
6. If all circuits test normal test or replace the B25B Clutch Pedal Position Sensor.
Component Testing
Static Test
1. Ignition OFF, disconnect the harness connector of the B25B Clutch Pedal Position Sensor.
2. Measure the resistance between the signal terminal B and the low reference terminal C of the B25B Clutch Pedal Position Sensor. Depress the clutch pedal through the entire range. The resistance should vary from low to high and vice versa without any spikes or dropouts.
• If the resistance is erratic with spikes or dropouts
Replace the B25B Clutch Pedal Position Sensor.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the repair.
* Refer to Clutch Pedal Position Sensor Replacement Service and Repair
* Perform the Control Module References Control Module References
* Perform the Engine Control Module Programming and Setup (LUW) Testing and Inspection