DTC P0704:00 [ZJ, ZY]

DTC P0704:00	CPP switch circuit malfunction
DETECTION CONDITION	• The PCM monitors the changes in input voltage from the CPP switch. If the PCM does not detect the voltage changes while the vehicle runs with the vehicle speed above 30 km/h {19 mph} and stops 8 times alternately, the PCM determines that the CPP switch circuit has a malfunction. Diagnostic support note • This is a continuous monitor (CCM). • The MIL illuminates if the 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 the PCM detects the above malfunction condition during the first drive cycle. • FREEZE FRAME DATA (Mode 2)/Snapshot data is available. • The DTC is stored in the PCM memory.
POSSIBLE CAUSE	• CPP switch connector or terminals malfunction • Open circuit in wiring harness between CPP switch terminal B and body ground • CPP switch malfunction • PCM connector or terminals malfunction • Open circuit or short to ground in wiring harness between CPP switch terminal A and PCM terminal 1M • PCM malfunction

DTC P0704:00

CPP switch circuit malfunction

DETECTION CONDITION

• The PCM monitors the changes in input voltage from the CPP switch. If the PCM does not detect the voltage changes while the vehicle runs with the vehicle speed above 30 km/h {19 mph} and stops 8 times alternately, the PCM determines that the CPP switch circuit has a malfunction.

Diagnostic support note

• This is a continuous monitor (CCM).

• The MIL illuminates if the 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 the PCM detects the above malfunction condition during the first drive cycle.

• FREEZE FRAME DATA (Mode 2)/Snapshot data is available.

• The DTC is stored in the PCM memory.

POSSIBLE CAUSE

• CPP switch connector or terminals malfunction

• Open circuit in wiring harness between CPP switch terminal B and body ground

• CPP switch malfunction

• PCM connector or terminals malfunction

• Open circuit or short to ground in wiring harness between CPP switch terminal A and PCM terminal 1M

• PCM malfunction

STEP	INSPECTION	ACTION
1	VERIFY FREEZE FRAME DATA (MODE 2)/SNAPSHOT DATA HAS BEEN RECORDED • Has the FREEZE FRAME DATA (Mode 2)/snapshot data been recorded?	Yes	Go to the next step.
No	Record the FREEZE FRAME DATA (Mode 2)/snapshot data on the repair order, then go to the next step.
2	VERIFY RELATED SERVICE INFORMATION AVAILABILITY • Verify related Service Information availability. • Is any related Service Information available?	Yes	Perform repair or diagnosis according to the available Service Information. • If the vehicle is not repaired, go to the next step.
No	Go to the next step.
3	INSPECT CPP SWITCH CONNECTOR AND TERMINALS • Turn the ignition switch off. • Disconnect the CPP switch connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is there any malfunction?	Yes	Repair or replace the connector or terminals, then go to Step 8.
No	Go to the next step.
4	INSPECT CPP SWITCH GROUND CIRCUIT FOR OPEN CIRCUIT • CPP switch connector is disconnected. • Inspect for continuity between CPP switch terminal B (wiring harness-side) and body ground. • Is there continuity?	Yes	Go to the next step.
No	Repair or replace the wiring harness for a possible open circuit, then go to Step 8.
5	INSPECT CPP SWITCH • Inspect the CPP switch. (See CLUTCH PEDAL POSITION (CPP) SWITCH INSPECTION [ZJ, ZY].) • Is there any malfunction?	Yes	Replace the CPP switch, then go to Step 8. (See CLUTCH PEDAL REMOVAL/INSTALLATION [F35M-R].)
No	Go to the next step.
6	INSPECT PCM CONNECTOR AND TERMINALS • Disconnect the PCM connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is there any malfunction?	Yes	Repair or replace the connector or terminals, then go to Step 8.
No	Go to the next step.
7	INSPECT CPP SWITCH SIGNAL CIRCUIT FOR OPEN CIRCUIT OR SHORT TO GROUND • CPP switch and PCM connectors are disconnected. • Reconnect the PCM connector. • Turn the ignition switch to the ON position (engine off). • Measure the voltage between CPP switch terminal A (wiring harness-side) and body ground. • Is the voltage normal? (See PCM INSPECTION [ZJ, ZY].)	Yes	Repair or replace the wiring harness for a possible open circuit or short to ground, then go to the next step.
No	Go to the next step.
8	VERIFY DTC TROUBLESHOOTING COMPLETED • Make sure to reconnect all disconnected connectors. • Clear the DTC from the PCM memory using the M-MDS. (See AFTER REPAIR PROCEDURE [ZJ, ZY].) • Drive the vehicle. • Repeat deceleration 8 times under the following conditions: ― Vehicle speed: from above 30 km/h {19 mph} to 30 km/h {19 mph} or less • Perform the Pending Trouble Code Access Procedure. (See ON-BOARD DIAGNOSTIC TEST [ZJ, ZY].) • Is the PENDING CODE for this DTC present?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [ZJ, ZY].)
No	Go to the next step.
9	VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [ZJ, ZY].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [ZJ, ZY].)
No	DTC troubleshooting completed.

STEP

INSPECTION

ACTION

VERIFY FREEZE FRAME DATA (MODE 2)/SNAPSHOT DATA HAS BEEN RECORDED

• Has the FREEZE FRAME DATA (Mode 2)/snapshot data been recorded?

Yes

Go to the next step.

Record the FREEZE FRAME DATA (Mode 2)/snapshot data on the repair order, then go to the next step.

VERIFY RELATED SERVICE INFORMATION AVAILABILITY

• Verify related Service Information availability.

• Is any related Service Information available?

Yes

Perform repair or diagnosis according to the available Service Information.

• If the vehicle is not repaired, go to the next step.

Go to the next step.

INSPECT CPP SWITCH CONNECTOR AND TERMINALS

• Turn the ignition switch off.

• Disconnect the CPP switch connector.

• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).

• Is there any malfunction?

Yes

Repair or replace the connector or terminals, then go to Step 8.

Go to the next step.

INSPECT CPP SWITCH GROUND CIRCUIT FOR OPEN CIRCUIT

• CPP switch connector is disconnected.

• Inspect for continuity between CPP switch terminal B (wiring harness-side) and body ground.

• Is there continuity?

Yes

Go to the next step.

Repair or replace the wiring harness for a possible open circuit, then go to Step 8.

INSPECT CPP SWITCH

• Inspect the CPP switch.

(See CLUTCH PEDAL POSITION (CPP) SWITCH INSPECTION [ZJ, ZY].)

• Is there any malfunction?

Yes

Replace the CPP switch, then go to Step 8.

(See CLUTCH PEDAL REMOVAL/INSTALLATION [F35M-R].)

Go to the next step.

INSPECT PCM CONNECTOR AND TERMINALS

• Disconnect the PCM connector.

• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).

• Is there any malfunction?

Yes

Repair or replace the connector or terminals, then go to Step 8.

Go to the next step.

INSPECT CPP SWITCH SIGNAL CIRCUIT FOR OPEN CIRCUIT OR SHORT TO GROUND

• CPP switch and PCM connectors are disconnected.

• Reconnect the PCM connector.

• Turn the ignition switch to the ON position (engine off).

• Measure the voltage between CPP switch terminal A (wiring harness-side) and body ground.

• Is the voltage normal?

(See PCM INSPECTION [ZJ, ZY].)

Yes

Repair or replace the wiring harness for a possible open circuit or short to ground, then go to the next step.

Go to the next step.

VERIFY DTC TROUBLESHOOTING COMPLETED

• Make sure to reconnect all disconnected connectors.

• Clear the DTC from the PCM memory using the M-MDS.

(See AFTER REPAIR PROCEDURE [ZJ, ZY].)

• Drive the vehicle.

• Repeat deceleration 8 times under the following conditions:

― Vehicle speed: from above 30 km/h {19 mph} to 30 km/h {19 mph} or less

• Perform the Pending Trouble Code Access Procedure.

(See ON-BOARD DIAGNOSTIC TEST [ZJ, ZY].)

• Is the PENDING CODE for this DTC present?

Yes

Replace the PCM, then go to the next step.

(See PCM REMOVAL/INSTALLATION [ZJ, ZY].)

Go to the next step.

VERIFY AFTER REPAIR PROCEDURE

• Perform the “AFTER REPAIR PROCEDURE”.

(See AFTER REPAIR PROCEDURE [ZJ, ZY].)

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [ZJ, ZY].)

DTC troubleshooting completed.