DTC U1007:68 [BCM]

id0902f5071700

Description

Communication error with current sensor

Detection condition

•  BCM could not receive signals from the current sensor for 5 s or more with the ignition switched ON (engine off or on).

Fail-safe

Not applicable

Possible cause

•  DC-DC converter (i-ELOOP) connector or terminal malfunction

•  Current sensor connector or terminal malfunction

•  Short to ground in wiring harness between DC-DC converter (i-ELOOP) terminal 1H and current sensor terminal A

•  Open circuit in wiring harness between DC-DC converter (i-ELOOP) terminal 1H and current sensor terminal A

•  BCM connector or terminal malfunction

•  Short to ground in wiring harness between current sensor terminal B and BCM terminal 3S

•  Open circuit in wiring harness between current sensor terminal B and BCM terminal 3S

•  Current sensor malfunction

•  DC-DC converter (i-ELOOP) malfunction

•  BCM malfunction

Description	Communication error with current sensor
Detection condition	• BCM could not receive signals from the current sensor for 5 s or more with the ignition switched ON (engine off or on).
Fail-safe	Not applicable
Possible cause	• DC-DC converter (i-ELOOP) connector or terminal malfunction • Current sensor connector or terminal malfunction • Short to ground in wiring harness between DC-DC converter (i-ELOOP) terminal 1H and current sensor terminal A • Open circuit in wiring harness between DC-DC converter (i-ELOOP) terminal 1H and current sensor terminal A • BCM connector or terminal malfunction • Short to ground in wiring harness between current sensor terminal B and BCM terminal 3S • Open circuit in wiring harness between current sensor terminal B and BCM terminal 3S • Current sensor malfunction • DC-DC converter (i-ELOOP) malfunction • BCM malfunction

Diagnostic Procedure

Step	Inspection		Action
1	VERIFY BCM DTCs AGAIN • Clear the DTC for the BCM using the M-MDS. (See CLEARING DTC [BCM].) • Switch the ignition ON (engine off or on) and wait for 5 s or more. • Retrieve the BCM DTCs using the M-MDS. (See DTC INSPECTION [BCM].) • Is the same Pending DTC present?	Yes	Go to the next step.
1		No	Go to Step 13.
2	VERIFY DC-DC CONVERTER (i-ELOOP) DTCs • Retrieve the DC-DC converter (i-ELOOP) DTCs using the M-MDS. (See DTC INSPECTION [i-ELOOP].) • Are any DTCs displayed?	Yes	Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [i-ELOOP].)
2		No	Go to the next step.
3	INSPECT CURRENT SENSOR CONNECTOR CONDITION Note • Always disconnect current sensor connector before disconnecting the negative battery terminal. • Switch the ignition off. • Disconnect the current sensor connector. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • 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.
3		No	Repair or replace the connector, then go to Step 12.
4	INSPECT DC-DC CONVERTER (i-ELOOP) CONNECTOR CONDITION • Disconnect the service plug. (See SERVICE PLUG DISCONNECTION/CONNECTION [i-ELOOP].) • Disconnect the DC-DC converter (i-ELOOP) 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 12.
5	INSPECT CURRENT SENSOR POWER SUPPLY CIRCUIT FOR SHORT TO GROUND • Verify that the current sensor and DC-DC converter (i-ELOOP) connectors are disconnected. • Inspect for continuity between current sensor 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 DC-DC converter (i-ELOOP) terminal 1H and current sensor terminal A. 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 Step 12.
5		No	Go to the next step.
6	INSPECT CURRENT SENSOR POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT • Verify that the current sensor and DC-DC converter (i-ELOOP) connectors are disconnected. • Inspect the wiring harness for continuity between DC-DC converter (i-ELOOP) terminal 1H (wiring harness-side) and current sensor terminal A (wiring harness-side). • Is there continuity?	Yes	Go to the next step.
6		No	Refer to the wiring diagram and verify whether or not there is a common connector between DC-DC converter (i-ELOOP) terminal 1H and current sensor terminal A. 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 an open circuit. • Repair or replace the malfunctioning part. If there is no common connector: • Repair or replace the wiring harness which has an open circuit. Go to Step 12.
7	INSPECT BCM CONNECTOR CONDITION • Disconnect the BCM 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.
7		No	Repair or replace the connector, then go to Step 12.
8	INSPECT CURRENT SENSOR LIN COMMUNICATION CIRCUIT FOR SHORT TO GROUND • Verify that the current sensor and BCM connectors are disconnected. • Inspect for continuity between current sensor terminal B (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 current sensor terminal B and BCM terminal 3S. 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 Step 12.
8		No	Go to the next step.
9	INSPECT CURRENT SENSOR LIN COMMUNICATION CIRCUIT FOR OPEN CIRCUIT • Verify that the current sensor and BCM connectors are disconnected. • Inspect the wiring harness for continuity between current sensor terminal B (wiring harness-side) and BCM terminal 3S (wiring harness-side). • Is there continuity?	Yes	Go to the next step.
9		No	Refer to the wiring diagram and verify whether or not there is a common connector between current sensor terminal B and BCM terminal 3S. 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 an open circuit. • Repair or replace the malfunctioning part. If there is no common connector: • Repair or replace the wiring harness which has an open circuit. Go to Step 12.
10	INSPECT CURRENT SENSOR • Inspect the current sensor. (See CURRENT SENSOR INSPECTION [SKYACTIV-G 1.5, SKYACTIV-G 2.0].) • Is the current sensor normal?	Yes	Go to the next step.
10		No	Replace the current sensor, then go to Step 12. (See CURRENT SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 1.5, SKYACTIV-G 2.0].)
11	INSPECT DC-DC CONVERTER (i-ELOOP) • Inspect the DC-DC converter (i-ELOOP). (See DC-DC CONVERTER (i-ELOOP) INSPECTION [i-ELOOP].) • Is the DC-DC converter (i-ELOOP) normal?	Yes	Go to the next step.
11		No	Replace the DC-DC converter (i-ELOOP), then go to the next step. (See DC-DC CONVERTER (i-ELOOP) REMOVAL/INSTALLATION [i-ELOOP].)
12	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Always reconnect all disconnected connectors. • Connect the service plug. (See SERVICE PLUG DISCONNECTION/CONNECTION [i-ELOOP].) • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Clear the DTC for the BCM using the M-MDS. (See CLEARING DTC [BCM].) • Switch the ignition ON (engine off or on) and wait for 5 s or more. • Retrieve the BCM DTCs using the M-MDS. (See DTC INSPECTION [BCM].) • Is the same Pending DTC present?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the BCM. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.) Go to the next step.
12		No	Go to the next step.
13	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 [BCM].)
13		No	DTC troubleshooting completed.