Diagnostic Procedure

DTC P081D:29 [START STOP UNIT] DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	VERIFY PCM DTCs Retrieve the PCM DTCs using the M-MDS. Are any DTCs displayed?	Yes	Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
1		No	Go to the next step.
2	INSPECT NEUTRAL SWITCH Inspect the neutral switch. Is the neutral switch normal?	Yes	Go to the next step.
2		No	Replace the neutral switch, then go to Step 4. (See NEUTRAL SWITCH REMOVAL/INSTALLATION [C66M-R].)
3	PERFORM DTC INSPECTION AND VERIFY PCM MALFUNCTION 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 1 min or more. Retrieve the start stop unit DTCs using the M-MDS. (See DTC INSPECTION [START STOP UNIT] .) Is the same Pending DTC present?	Yes	Replace the PCM, then go to the next step.
3		No	Go to Step 5.
4	VERIFY THAT REPAIRS HAVE BEEN COMPLETED 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 1 min or more. Retrieve the start stop unit DTCs using the M-MDS. (See DTC INSPECTION [START STOP UNIT] .) Is the same Pending DTC present?	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.
4		No	Go to the next step.
5	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] .)
5		No	DTC troubleshooting completed.