DTC P0704 [L3]

BME010200700203

DTC P0704

Clutch switch circuit malfunction

DETECTION CONDITION

• The PCM monitors changes in input voltage from clutch pedal position switch. If the PCM does not detect PCM terminal 1R voltage changes while running vehicle with vehicle speed below 30 km/h {19mph} 10 times alternately, the PCM determines that the clutch pedal position switch circuit has malfunction.
Diagnostic support note
• This is a continuous monitor (CCM).
• MIL illuminates if PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if PCM detects the above malfunction condition during first drive cycle.
• FREEZE FRAME DATA is available.
• DTC is stored in PCM memory.

POSSIBLE CAUSE

• Clutch switch malfunction
• Poor connection of clutch pedal position switch connector or PCM connector
• Short to ground between clutch pedal position switch terminal C and PCM connector terminal 1R
• Open harness between clutch pedal position switch terminal C and PCM connector terminal 1R
• Open harness between ground and clutch pedal position switch terminal E
• PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has FREEZE FRAME DATA been recorded?
Yes
Go to the next step.
No
Record FREEZE FRAME DATA on repair order, then go to the next step.
2
VERIFY RELATED REPAIR INFORMATION AVAILABILITY
• Check for related Service information availability.
• Is any related Service information available?
Yes
Perform repair or diagnosis according to available Service information.
• If vehicle is not repaired, go to the next step.
No
Go to the next step.
3
CLASSIFY HIGH INPUT OR LOW INPUT
• Connect the WDS or equivalent to the DLC-2.
• Access CPP PID.
• Verify CPP PID during clutch pedal operation.
• Is CPP PID always OFF?.
Yes
Go to Next step.
No
Go to Step 10.
4
INSPECT CLUTCH PEDAL POSITION SWITCH CONNECTOR FOR POOR CONNECTION
• Turn the ignition switch off.
• Disconnect the clutch pedal position switch connector.
• Inspect for poor connection (damaged/pulled-out terminals, corrosion, etc.).
• Is there any malfunction?
Yes
Repair or replace the terminal, then go to Step 14.
No
Go to the next step.
5
CLASSIFY CLUTCH PEDAL POSITION SWITCH OR CIRCUIT
• Connect the WDS or equivalent to the DLC-2.
• Access CPP PID.
• Connect a jumper wire between clutch pedal position switch terminal C and E.
• Is CPP PID on?
Yes
Go to the next step.
No
Go to Step 7.
6
INSPECT CLUTCH PEDAL POSITION SWITCH
• Perform clutch pedal position switch inspection.
• Is the clutch pedal position switch normal?
Yes
Go to Step 14.
No
Replace the clutch pedal position switch, then go to Step 14.
7
INSPECT CLUTCH PEDAL POSITION SWITCH GROUND CIRCUIT FOR OPEN CIRCUIT
• Inspect for continuity between clutch pedal position switch terminal E and ground.
• Is there continuity?
Yes
Go to the next step.
No
Repair or replace the clutch pedal position switch power circuit for open, then Go to Step 14.
8
INSPECT PCM CONNECTOR FOR POOR CONNECTION
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (damaged/pulled-out terminals, corrosion, etc.).
• Is there any malfunction?
Yes
Repair or replace the terminal, then go to Step 14.
No
Go to the next step.
9
INSPECT CLUTCH PEDAL POSITION SWITCH SIGNAL CIRCUIT FOR OPEN CIRCUIT
• Inspect for continuity between clutch pedal position switch terminal C and PCM terminal 1R.
• Is there continuity?
Yes
Repair or replace the wiring harness for open circuit, then go to Step 14.
No
Go to Step 14.
10
INSPECT CLUTCH PEDAL POSITION SWITCH CONNECTOR FOR POOR CONNECTION
• Turn the ignition switch off.
• Disconnect the clutch pedal position switch connector.
• Inspect for poor connection (damaged/pulled-out terminals, corrosion, etc.).
• Is there any malfunction?
Yes
Repair or replace the terminal, then go to Step 14.
No
Go to the next step.
11
CLASSIFY CLUTCH PEDAL POSITION SWITCH OR CIRCUIT
• Connect the WDS or equivalent to the DLC-2.
• Access CPP PID.
• Verify that CPP PID changes from ON to OFF when clutch pedal position switch connector disconnected.
• Does CPP PID change from ON to OFF?
Yes
Go to the next step.
No
Go to Step 13.
12
INSPECT CLUTCH PEDAL POSITION SWITCH
• Perform clutch pedal position switch inspection.
• Is the clutch pedal position switch normal?
Yes
Go to Step 14.
No
Replace the clutch pedal position switch, then go to Step 14.
13
INSPECT CLUTCH PEDAL POSITION SWITCH SIGNAL CIRCUIT FOR SHORT TO GROUND
• Inspect for continuity between clutch pedal position switch terminal C and ground.
• Is there continuity?
Yes
Repair or replace the wiring harness for short to ground, then go to Step 14.
No
Go to Next step.
14
VERIFY TROUBLESHOOTING OF DTC P0704 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Start the engine.
• Clear the DTC from the PCM memory using the WDS or equivalent.
• Operate clutch pedal while driving vehicle below 30 km/h {19 mph} 10 times alternately.
• Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
No
Go to the next step.
15
VERIFY AFTER REPAIR PROCEDURE
• Perform "After Repair Procedure".
• Is there any DTC present?
Yes
Go to the applicable DTC inspection.
No
Troubleshooting completed.