DTC U1007:68 [FRONT BODY CONTROL MODULE (FBCM)]

id0902p2011000

System malfunction location

Communication error with current sensor

Detection condition

•  The front body control module (FBCM) detects communication error with the current sensor for 5 s.

Fail-safe

—

Possible cause

•  Malfunction in communication line between front body control module (FBCM) and current sensor

•  Current sensor connector or terminal malfunction

•  Short to ground or open circuit in current sensor power supply circuit

―  Short to ground in wiring harness between battery positive terminal and current sensor terminal A

―  MAIN 200 A fuse malfunction

―  ENG.+B 7.5 A fuse malfunction

―  Open circuit in wiring harness between battery positive terminal and current sensor terminal A

•  Front body control module (FBCM) connector or terminal malfunction

•  Short to ground in wiring harness between current sensor terminal B and front body control module (FBCM) terminal 2E

•  Open circuit in wiring harness between current sensor terminal B and front body control module (FBCM) terminal 2E

•  Current sensor malfunction

•  Front body control module (FBCM) malfunction

System malfunction location	Communication error with current sensor
Detection condition	• The front body control module (FBCM) detects communication error with the current sensor for 5 s.
Fail-safe	—
Possible cause	• Malfunction in communication line between front body control module (FBCM) and current sensor • Current sensor connector or terminal malfunction • Short to ground or open circuit in current sensor power supply circuit ― Short to ground in wiring harness between battery positive terminal and current sensor terminal A ― MAIN 200 A fuse malfunction ― ENG.+B 7.5 A fuse malfunction ― Open circuit in wiring harness between battery positive terminal and current sensor terminal A • Front body control module (FBCM) connector or terminal malfunction • Short to ground in wiring harness between current sensor terminal B and front body control module (FBCM) terminal 2E • Open circuit in wiring harness between current sensor terminal B and front body control module (FBCM) terminal 2E • Current sensor malfunction • Front body control module (FBCM) malfunction

Diagnostic Procedure

Step	Inspection		Action
1	VERIFY FRONT BODY CONTROL MODULE (FBCM) DTCs AGAIN • Clear front body control module (FBCM) DTCs using the M-MDS. (See CLEARING DTC [FRONT BODY CONTROL MODULE (FBCM)].) • Switch the ignition ON (engine off or on) and wait for 5 s or more. • Perform the front body control module (FBCM) DTC inspection using the M-MDS. (See DTC INSPECTION [FRONT BODY CONTROL MODULE (FBCM)].) • Is DTC U1007:68 displayed?	Yes	Go to the next step.
1		No	Go to Step 9.
2	INSPECT CURRENT SENSOR CONNECTOR • Switch the ignition to off. • Disconnect the current sensor connector. • 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].) • 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 8.
3	INSPECT CURRENT SENSOR POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT OR SHORT TO GROUND • Verify that the current sensor connector is disconnected. • 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].) • Measure the voltage at current sensor terminal A (vehicle wiring harness side). • Is the voltage B+?	Yes	Go to the next step.
3		No	INSPECT MAIN 200 A FUSE AND ENG.+B 7.5 A FUSE • 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. • All fuses are normal: ― Repair or replace the wiring harness which has an open circuit. Go to Step 8.
4	INSPECT FRONT BODY CONTROL MODULE (FBCM) CONNECTOR CONDITION • 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 front body control module (FBCM) 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 8.
5	INSPECT CURRENT SENSOR LIN COMMUNICATION CIRCUIT FOR SHORT TO GROUND • Verify that the current sensor and front body control module (FBCM) connectors are disconnected. • Inspect for continuity between current sensor terminal B (vehicle wiring harness) and body ground. • Is there continuity?	Yes	Repair or replace the wiring harness, then go to Step 8.
5		No	Go to the next step.
6	INSPECT CURRENT SENSOR LIN COMMUNICATION CIRCUIT FOR OPEN CIRCUIT • Verify that the current sensor and front body control module (FBCM) connectors are disconnected. • Inspect the wiring harness for continuity between current sensor terminal B (vehicle wiring harness side) and front body control module (FBCM) terminal 2E (vehicle wiring harness side). • Is there continuity?	Yes	Go to the next step.
6		No	Repair or replace the wiring harness, then go to Step 8.
7	INSPECT CURRENT SENSOR • Inspect the current sensor. (See CURRENT SENSOR INSPECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See CURRENT SENSOR INSPECTION [SKYACTIV-D 2.2].) • Is the current sensor normal?	Yes	Go to the next step.
7		No	Replace the current sensor, then go to the next step. (See CURRENT SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See CURRENT SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
8	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 front body control module (FBCM) DTCs using the M-MDS. (See CLEARING DTC [FRONT BODY CONTROL MODULE (FBCM)].) • Switch the ignition ON (engine off or on) and wait for 5 s or more. • Perform the front body control module (FBCM) DTC inspection using the M-MDS. (See DTC INSPECTION [FRONT BODY CONTROL MODULE (FBCM)].) • Is DTC U1007:68 displayed?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the front body control module (FBCM), then go to the next step. (See FRONT BODY CONTROL MODULE (FBCM) REMOVAL/INSTALLATION.)
8		No	Go to the next step.
9	VERIFY IF OTHER DTCs DISPLAYED • Are any other DTCs displayed?	Yes	Repair the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [FRONT BODY CONTROL MODULE (FBCM)].)
9		No	DTC troubleshooting completed.