DTC P0560:16 [START STOP UNIT]

id0902p6021900

System malfunction location

Start stop unit power supply voltage (+B3) low input

Detection condition

•  Start stop unit power supply circuit (+B3) voltage of less than 8.5 V is detected for 5 s or more.

Fail-safe

—

Possible cause

•  Battery malfunction

•  Start stop unit connector or terminal malfunction

•  Start stop unit power supply circuit (+B3) malfunction

―  Short to ground in wiring harness between MAIN 200 A fuse and start stop unit terminal 2X

―  MAIN 200 A fuse malfunction

―  CABIN.+B 50 A fuse malfunction

―  SRS2/ESCL 15 A fuse malfunction

―  Open circuit in wiring harness between battery positive terminal and start stop unit terminal 2X

•  Start stop unit malfunction

System malfunction location	Start stop unit power supply voltage (+B3) low input
Detection condition	• Start stop unit power supply circuit (+B3) voltage of less than 8.5 V is detected for 5 s or more.
Fail-safe	—
Possible cause	• Battery malfunction • Start stop unit connector or terminal malfunction • Start stop unit power supply circuit (+B3) malfunction ― Short to ground in wiring harness between MAIN 200 A fuse and start stop unit terminal 2X ― MAIN 200 A fuse malfunction ― CABIN.+B 50 A fuse malfunction ― SRS2/ESCL 15 A fuse malfunction ― Open circuit in wiring harness between battery positive terminal and start stop unit terminal 2X • Start stop unit malfunction

Diagnostic Procedure

Step	Inspection		Action
1	INSPECT BATTERY • Inspect the battery. (See BATTERY INSPECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See BATTERY INSPECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) (See BATTERY INSPECTION [SKYACTIV-D 2.2].) • Is the battery normal?	Yes	Go to the next step.
1		No	Recharge or replace the battery, then go to Step 4. (See BATTERY RECHARGING [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See BATTERY RECHARGING [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) (See BATTERY RECHARGING [SKYACTIV-D 2.2].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
2	INSPECT START STOP UNIT CONNECTOR CONDITION • Switch the ignition to off. • Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) • 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.
2		No	Repair or replace the connector, then go to Step 4.
3	INSPECT START STOP UNIT POWER SUPPLY CIRCUIT (+B3) • Reconnect all the disconnected connectors. • Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) • Display PID VPWR_B3 using the M-MDS. (See PID/DATA MONITOR INSPECTION [START STOP UNIT].) • Is the voltage B+?	Yes	Go to the next step.
3		No	Inspect the MAIN 200 A, CABIN.+B 50 A and SRS2/ESCL 15 A fuses. • If a fuse is burnt out: ― Repair or replace the wiring harness which is shorted to ground. ― Replace the burnt out fuse. • If a fuse is damaged: ― Replace the damaged fuse. • If the fuse is normal: ― Repair or replace the wiring harness which has an open circuit. Go to the next step.
4	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Reconnect all the disconnected connectors. • Reconnect the disconnected negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) • Clear 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 5 s or more. • Perform the DTC inspection for the start stop unit using the M-MDS. (See DTC INSPECTION [START STOP UNIT].) • Is DTC P0560:16 displayed?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the start stop unit, then go to the next step. (See START STOP UNIT REMOVAL/INSTALLATION.)
4		No	Go to the next step.
5	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].)
5		No	DTC troubleshooting completed.