DTC P0830:23 [START STOP UNIT]

id0902p6023100

Description

CPP switch circuit malfunction

Detection condition

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

Fail-safe function

•  Change to the back-up mode.

•  Perform the control with CPP switch turned off.

Possible cause

•  DTCs are stored in the PCM.

•  CPP switch connector or terminal malfunction

•  CPP 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:

―  CPP switch terminal A—PCM terminal 2J (SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5)

―  CPP switch terminal A—PCM terminal 2M (SKYACTIV-D 1.5)

―  CPP switch terminal A—PCM terminal 2AG (SKYACTIV-D 2.2)

―  CPP switch terminal A—PCM terminal 1AA (MZR 1.6)

―  CPP switch terminal A—Start stop unit terminal 2E

•  Start stop unit malfunction

Description	CPP switch circuit malfunction
Detection condition	• Start stop unit detects that the CPP switch is stuck on for 10 min or more.
Fail-safe function	• Change to the back-up mode. • Perform the control with CPP switch turned off.
Possible cause	• DTCs are stored in the PCM. • CPP switch connector or terminal malfunction • CPP 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: ― CPP switch terminal A—PCM terminal 2J (SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5) ― CPP switch terminal A—PCM terminal 2M (SKYACTIV-D 1.5) ― CPP switch terminal A—PCM terminal 2AG (SKYACTIV-D 2.2) ― CPP switch terminal A—PCM terminal 1AA (MZR 1.6) ― CPP switch terminal A—Start stop unit terminal 2E • Start stop unit malfunction

Diagnostic Procedure

Step	Inspection		Action
1	VERIFY PCM DTCs • Retrieve the PCM DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-D 1.5].) (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-D 2.2].) (See ON-BOARD DIAGNOSTIC TEST [MZR 1.6].) • Are any DTCs displayed?	Yes	Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See DTC TABLE [SKYACTIV-D 1.5].) (See DTC TABLE [SKYACTIV-D 2.2].) (See DTC TABLE [MZR 1.6].)
1		No	Go to the next step.
2	INSPECT CPP SWITCH CONNECTOR CONDITION • Switch the ignition off. • Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 1.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [MZR 1.6].) • Disconnect the CPP 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.
2		No	Repair or replace the connector, then go to Step 7.
3	INSPECT CPP SWITCH • Inspect the CPP switch. (See CLUTCH PEDAL POSITION (CPP) SWITCH INSPECTION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See CLUTCH PEDAL POSITION (CPP) SWITCH INSPECTION [SKYACTIV-D 1.5].) (See CLUTCH PEDAL POSITION (CPP) SWITCH INSPECTION [SKYACTIV-D 2.2].) (See CLUTCH PEDAL POSITION (CPP) SWITCH INSPECTION [MZR 1.6].) • Is the CPP switch normal?	Yes	Go to the next step.
3		No	Replace the CPP switch, then go to the Step 7. (See CLUTCH PEDAL POSITION SWITCH REMOVAL/INSTALLATION [C66M-R].) (See CLUTCH PEDAL POSITION SWITCH REMOVAL/INSTALLATION [D66M-R].) (See CLUTCH PEDAL POSITION SWITCH REMOVAL/INSTALLATION [F66M-R].) (See CLUTCH PEDAL POSITION SWITCH REMOVAL/INSTALLATION [F35M-R].)
4	INSPECT START STOP UNIT CONNECTOR CONDITION • 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.
4		No	Repair or replace the connector, then go to Step 7.
5	INSPECT PCM CONNECTOR CONDITION • 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.
5		No	Repair or replace the connector, then go to Step 7.
6	INSPECT FOR SHORT TO GROUND IN CPP SWITCH CIRCUIT • Verify that the CPP switch, start stop unit and PCM connectors are disconnected. • Inspect for continuity between CPP 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: • CPP switch terminal A—PCM terminal 2J (SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5) • CPP switch terminal A—PCM terminal 2M (SKYACTIV-D 1.5) • CPP switch terminal A—PCM terminal 2AG (SKYACTIV-D 2.2) • CPP switch terminal A—PCM terminal 1AA (MZR 1.6) • CPP 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.
6		No	Go to the next step.
7	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Always reconnect all disconnected connectors. • Reconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 1.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [MZR 1.6].) • 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.
7		No	Go to the next step.
8	VERIFY IF OTHER DTCs DISPLAYED • Are any other DTCs displayed?	Yes	Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [START STOP UNIT].)
8		No	DTC troubleshooting completed.