DTC P0616:29 [START STOP UNIT]

id0902p6022600

System malfunction location

Starter relay signal malfunction

Detection condition

•  If the following CAN signals are unmatched for 0.5 s or more continuously, and this condition is detected for a continuous 5 or more times.

―  Transaxle range sensor (ATX) or starter interlock switch (MTX) condition

―  Starter relay downstream circuit condition

―  PCM control result

―  CAN signal condition output from PCM

Fail-safe

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Possible cause

•  PCM stores DTCs

•  Start stop unit malfunction

System wiring diagram

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System malfunction location	Starter relay signal malfunction
Detection condition	• If the following CAN signals are unmatched for 0.5 s or more continuously, and this condition is detected for a continuous 5 or more times. ― Transaxle range sensor (ATX) or starter interlock switch (MTX) condition ― Starter relay downstream circuit condition ― PCM control result ― CAN signal condition output from PCM
Fail-safe	—
Possible cause	• PCM stores DTCs • Start stop unit malfunction
System wiring diagram	—

Diagnostic Procedure

Step	Inspection		Action
1	VERIFY PCM DTCs • Perform the DTC inspection for the PCM using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-D 2.2].) • Is the DTC displayed?	Yes	Repair the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See DTC TABLE [SKYACTIV-D 2.2].)
1		No	Go to the next step.
2	PERFORM DTC INSPECTION AND VERIFY IF MALFUNCTIONING PART IS START STOP UNIT • Clear DTC for the start stop unit using the M-MDS. (See CLEARING DTC [START STOP UNIT].) • With the programmed remote transmitter in the vehicle, switch the ignition ON (engine off). • Depress the clutch pedal and release it. (MTX) • Operate the selector lever to positions from other than P or N and hold for 1 s or more, and perform this procedure 5 or more times. (ATX) • Perform the DTC inspection for the start stop unit using the M-MDS. (See DTC INSPECTION [START STOP UNIT].) • Is DTC P0616:29 displayed?	Yes	Replace the start stop unit, then go to the next step. (See START STOP UNIT REMOVAL/INSTALLATION.)
2		No	Go to the next step.
3	VERIFY IF OTHER DTCs DISPLAYED • Are any other DTCs displayed?	Yes	Repair the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [START STOP UNIT].)
3		No	DTC troubleshooting completed.