DTC P0808 Clutch Position Sensor Circuit High (4JJ3 without DPD)

1. Engine control system check

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) Diagnostic system check-engine controls".

2. Clutch pedal stroke sensor signal voltage check

1) Connect the scan tool.

2) Turn OFF the ignition switch for 1 minute or more.

3) Start the engine.

4) Observe the Clutch Stroke Sensor Voltage parameter on the scan tool. Is the Clutch Stroke Sensor Voltage parameter more than or equal to the specified value?

Value: 4.9 V

Yes

=>Go to Prioritized DTC and clutch pedal stroke sensor signal voltage check.

Go to Intermittent conditions of engine.

Refer to "202.Engine 15D.Symptom(4JJ3 without DPD) intermittent conditions of engine".

3. Prioritized DTC and clutch pedal stroke sensor signal voltage check

1) Observe the DTC information with a scan tool for DTC P0697 being set at the same time.

2) Turn OFF the ignition switch.

3) Disconnect the clutch pedal stroke sensor harness connector (C73).

Refer to "LHD Engine Control (4JJ3 without DPD)" in the ETM (wiring diagram). (Open using the ETM viewer.).

Refer to "RHD Engine Control (4JJ3 without DPD)" in the ETM (wiring diagram). (Open using the ETM viewer.).

4) Turn ON the ignition switch.

5) Observe the Clutch Stroke Sensor Voltage parameter on the scan tool.

Value: 0.3 V

The reading is more than the specified value.

=>Go to Inspection for short to power supply in clutch pedal stroke sensor signal circuit.

The reading is less than or equal to the specified value and DTC P0697 is set.

Go to DTC P0697 diagnosis.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0697 Sensor Reference Voltage 3 Circuit".

The reading is less than or equal to the specified value and DTC P0697 is not set.

=>Go to Clutch pedal stroke sensor low reference circuit inspection using test lamp.

4. Clutch pedal stroke sensor low reference circuit inspection using test lamp

1) Connect a test lamp between the clutch pedal stroke sensor low reference circuit (pin 1 of C73) and the battery power supply. Does the test lamp illuminate?

Refer to "LHD Engine Control (4JJ3 without DPD)" in the ETM (wiring diagram). (Open using the ETM viewer.).

Refer to "RHD Engine Control (4JJ3 without DPD)" in the ETM (wiring diagram). (Open using the ETM viewer.).

Yes

=>Go to Clutch pedal stroke sensor harness connector inspection.

=>Go to Inspection for open circuit in clutch pedal stroke sensor low reference circuit.

5. Inspection for short to power supply in clutch pedal stroke sensor signal circuit

1) Inspect the clutch pedal stroke sensor signal circuit between the ECM (pin 29 of C10) and the clutch pedal stroke sensor (pin 3 of C73) for the following. Is the result normal?

Short to the battery power supply circuit or short to the ignition power supply circuit
Short to the 5 V reference circuit

Note

The clutch pedal stroke sensor may be damaged if the sensor signal circuit is shorted to the power supply.

Refer to "LHD Engine Control (4JJ3 without DPD)" in the ETM (wiring diagram). (Open using the ETM viewer.).

Refer to "RHD Engine Control (4JJ3 without DPD)" in the ETM (wiring diagram). (Open using the ETM viewer.).

Yes

=>Go to ECM replacement.

Repair the circuit as necessary.

=>Go to Repair verification.

6. Inspection for open circuit in clutch pedal stroke sensor low reference circuit

1) Inspect the clutch pedal stroke sensor low reference circuit between the ECM (pin 17 of C9) and the clutch pedal stroke sensor (pin 1 of C73) for an open circuit or high resistance. Is the result normal?

Caution

The clutch pedal stroke sensor shares the low reference circuit with other sensors. A malfunction in the low reference circuit may set DTCs on sensors that share this circuit.

Refer to "LHD Engine Control (4JJ3 without DPD)" in the ETM (wiring diagram). (Open using the ETM viewer.).

Refer to "RHD Engine Control (4JJ3 without DPD)" in the ETM (wiring diagram). (Open using the ETM viewer.).

Yes

=>Go to ECM harness connector inspection.

Repair the circuit as necessary.

=>Go to Repair verification.

7. Clutch pedal stroke sensor harness connector inspection

1) Inspect for poor connections at the clutch pedal stroke sensor harness connector (pin 1 of C73). Is the connection status normal?

Refer to "LHD Engine Control (4JJ3 without DPD)" in the ETM (wiring diagram). (Open using the ETM viewer.).

Refer to "RHD Engine Control (4JJ3 without DPD)" in the ETM (wiring diagram). (Open using the ETM viewer.).

Yes

Replace the clutch master cylinder.

Refer to "5.Transmission, Transaxle 5E.Clutch System(MVL) clutch control removal".

Refer to "5.Transmission, Transaxle 5E.Clutch System(MVL) clutch control installation".

=>Go to Repair verification.

Repair the connections as necessary.

=>Go to Repair verification.

8. ECM harness connector inspection

1) Inspect for poor connections at the ECM harness connector (pin 17 of C9). Is the connection status normal?

Refer to "LHD Engine Control (4JJ3 without DPD)" in the ETM (wiring diagram). (Open using the ETM viewer.).

Refer to "RHD Engine Control (4JJ3 without DPD)" in the ETM (wiring diagram). (Open using the ETM viewer.).

Yes

=>Go to ECM replacement.

Repair the connections as necessary.

=>Go to Repair verification.

9. ECM replacement

Note

Perform programming after replacing the ECM.

Refer to "1.Engine 1Z.Engine Electrical Control(4JJ3 without DPD) ECM removal".

Refer to "1.Engine 1Z.Engine Electrical Control(4JJ3 without DPD) ECM installation".

Refer to "1.Engine 1Z.Engine Electrical Control(4JJ3 without DPD) ECM setting".

Procedure completion

=>Go to Repair verification.

10. Repair verification

1) Clear the DTC with a scan tool.

2) Turn OFF the ignition switch for 1 minute or more.

3) Start the engine.

4) Operate the vehicle under the conditions for running the DTC.

5) Observe the DTC information with a scan tool.