Description

Clutch pedal position switch circuit malfunction

Detection condition

• Start stop unit detects that the clutch pedal position switch is stuck on for 10 min or more.

Fail-safe

• Change to the back-up mode.

• Perform the control with clutch pedal position switch turned off.

Possible cause

• DTCs are stored in the PCM.

• Clutch pedal position switch connector or terminal malfunction

• Clutch pedal position switch malfunction

• Start stop unit connector or terminal malfunction

• PCM connector or terminal malfunction

• Short to ground in the wiring harness between the following terminals:

• Clutch pedal position switch terminal A—PCM terminal 2J

• Clutch pedal position switch terminal A—Start stop unit terminal 2E

• Start stop unit malfunction

Step

Inspection

Action

1

• Retrieve the PCM DTCs using the M-MDS.

  (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G 2.0)].)

• Are any DTCs displayed?

Yes

Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.

(See DTC TABLE [PCM (SKYACTIV-G 2.0)].)

No

Go to the next step.

2

• Switch the ignition off.

• Disconnect the negative battery cable.

  (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)

• Disconnect the clutch pedal position switch connector.

• Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.

• Is the connector normal?

Yes

Go to the next step.

No

Repair or replace the connector, then go to Step 7.

3

• Inspect the clutch pedal position switch.

  (See CLUTCH PEDAL POSITION (CPP) SWITCH INSPECTION [SKYACTIV-G 2.0].)

• Is the clutch pedal position switch normal?

Yes

Go to the next step.

No

Replace the clutch pedal position switch, then go to the Step 7.

(See CLUTCH PEDAL POSITION SWITCH REMOVAL/INSTALLATION.)

4

• Disconnect the start stop unit connector.

• Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.

• Is the connector normal?

Yes

Go to the next step.

No

Repair or replace the connector, then go to Step 7.

5

• Disconnect the PCM connector.

• Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.

• Is the connector normal?

Yes

Go to the next step.

No

Repair or replace the connector, then go to Step 7.

6

• Verify that the clutch pedal position switch, start stop unit and PCM connectors are disconnected.

• Inspect for continuity between clutch pedal position switch terminal A (wiring harness-side) and body ground.

• Is there continuity?

Yes

Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:

• Clutch pedal position switch terminal A—PCM terminal 2J

• Clutch pedal position switch terminal A—Start stop unit terminal 2E

If there is a common connector:

• Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.

• Repair or replace the malfunctioning part.

If there is no common connector:

• Repair or replace the wiring harness which has a short to ground.

Go to the next step.

No

Go to the next step.

7

• Always reconnect all disconnected connectors.

• Connect the negative battery cable.

  (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)

• Clear the DTC for the start stop unit using the M-MDS.

  (See CLEARING DTC [START STOP UNIT].)

• Switch the ignition ON (engine off or on) and wait for 10 min or more.

• Retrieve the start stop unit DTCs using the M-MDS.

  (See DTC INSPECTION [START STOP UNIT].)

• Is the same DTC displayed?

Yes

Repeat the inspection from Step 1.

• If the malfunction recurs, replace the start stop unit.

  (See START STOP UNIT REMOVAL/INSTALLATION.)

Go to the next step.

No

Go to the next step.

8

• Are any other DTCs displayed?

Yes

Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.

(See DTC TABLE [START STOP UNIT].)

No

DTC troubleshooting completed.