DTC B111E:12 [ELECTRICAL SUPPLY UNIT (ESU)]

id0902ff060900

4SD

Description

Trunk compartment light circuit malfunction

Detection condition

•  Electrical supply unit (ESU) detects a short to power supply in the trunk compartment light circuit.

Fail-safe

Not applicable

Possible cause

•  Trunk compartment light bulb malfunction

•  Trunk compartment light connector or terminal malfunction

•  Electrical supply unit (ESU) connector or terminal malfunction

•  Short to power supply in wiring harness between trunk compartment light terminal B and electrical supply unit (ESU) terminal 2F

•  Electrical supply unit (ESU) malfunction

Description	Trunk compartment light circuit malfunction
Detection condition	• Electrical supply unit (ESU) detects a short to power supply in the trunk compartment light circuit.
Fail-safe	Not applicable
Possible cause	• Trunk compartment light bulb malfunction • Trunk compartment light connector or terminal malfunction • Electrical supply unit (ESU) connector or terminal malfunction • Short to power supply in wiring harness between trunk compartment light terminal B and electrical supply unit (ESU) terminal 2F • Electrical supply unit (ESU) malfunction

Diagnostic Procedure

Step	Inspection		Action
1	VISUALLY INSPECT TRUNK COMPARTMENT LIGHT BULB • Visually inspect the trunk compartment light bulb. • Is the trunk compartment light bulb normal?	Yes	Go to the next step.
1		No	Replace the trunk compartment light bulb, then go to Step 5. (See TRUNK COMPARTMENT LIGHT BULB REMOVAL/INSTALLATION.)
2	INSPECT TRUNK COMPARTMENT LIGHT CONNECTOR CONDITION • Switch the ignition off. • Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) • Disconnect the trunk compartment light 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 5.
3	INSPECT ELECTRICAL SUPPLY UNIT (ESU) CONNECTOR CONDITION • Disconnect the electrical supply unit (ESU) 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.
3		No	Repair or replace the connector, then go to Step 5.
4	INSPECT TRUNK COMPARTMENT LIGHT CIRCUIT FOR SHORT TO POWER SUPPLY • Verify that the trunk compartment light and electrical supply unit (ESU) connectors are disconnected. • Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off or on). • Measure the voltage at the trunk compartment light terminal B (wiring harness-side). • Is the voltage 0 V?	Yes	Go to the next step.
4		No	Refer to the wiring diagram and verify whether or not there is a common connector between trunk compartment light terminal B and electrical supply unit (ESU) terminal 2F. 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 power supply. • Repair or replace the malfunctioning part. If there is no common connector: • Repair or replace the wiring harness which has a short to power supply. Go to the next step.
5	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Always reconnect all disconnected connectors. • Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) • Clear the DTC for the electrical supply unit (ESU) using the M-MDS. (See CLEARING DTC [ELECTRICAL SUPPLY UNIT (ESU)].) • Open the trunk. • Retrieve the electrical supply unit (ESU) DTCs using the M-MDS. (See DTC INSPECTION [ELECTRICAL SUPPLY UNIT (ESU)].) • Is the same DTC displayed?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the electrical supply unit (ESU). (See ELECTRICAL SUPPLY UNIT (ESU) REMOVAL/INSTALLATION.) Go to the next step.
5		No	Go to the next step.
6	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 [ELECTRICAL SUPPLY UNIT (ESU)].)
6		No	DTC troubleshooting completed.

5HB

Description

Cargo compartment light circuit malfunction

Detection condition

•  Electrical supply unit (ESU) detects a short to power supply in the cargo compartment light circuit.

Fail-safe

Not applicable

Possible cause

•  Cargo compartment light bulb malfunction

•  Cargo compartment light connector or terminal malfunction

•  Cargo compartment malfunction

•  Electrical supply unit (ESU) connector or terminal malfunction

•  Short to power supply in wiring harness between cargo compartment light terminal B and electrical supply unit (ESU) terminal 2F

•  Electrical supply unit (ESU) malfunction

Description	Cargo compartment light circuit malfunction
Detection condition	• Electrical supply unit (ESU) detects a short to power supply in the cargo compartment light circuit.
Fail-safe	Not applicable
Possible cause	• Cargo compartment light bulb malfunction • Cargo compartment light connector or terminal malfunction • Cargo compartment malfunction • Electrical supply unit (ESU) connector or terminal malfunction • Short to power supply in wiring harness between cargo compartment light terminal B and electrical supply unit (ESU) terminal 2F • Electrical supply unit (ESU) malfunction

Diagnostic Procedure

Step	Inspection		Action
1	VISUALLY INSPECT CARGO COMPARTMENT LIGHT BULB • Visually inspect the cargo compartment light bulb. • Is the cargo compartment light bulb normal?	Yes	Go to the next step.
1		No	Replace the cargo compartment light bulb, then go to Step 6. (See CARGO COMPARTMENT LIGHT BULB REMOVAL/INSTALLATION.)
2	INSPECT CARGO COMPARTMENT LIGHT CONNECTOR CONDITION • Switch the ignition off. • Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) • Disconnect the trunk compartment light 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 6.
3	INSPECT CARGO COMPARTMENT LIGHT • Inspect the cargo compartment light. (See CARGO COMPARTMENT LIGHT INSPECTION.) • Is the cargo compartment light normal?	Yes	Go to the next step.
3		No	Replace the cargo compartment light, then go to Step 6. (See CARGO COMPARTMENT LIGHT REMOVAL/INSTALLATION.)
4	INSPECT ELECTRICAL SUPPLY UNIT (ESU) CONNECTOR CONDITION • Disconnect the electrical supply unit (ESU) 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 6.
5	INSPECT CARGO COMPARTMENT LIGHT CIRCUIT FOR SHORT TO POWER SUPPLY • Verify that the cargo compartment light and electrical supply unit (ESU) connectors are disconnected. • Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off or on). • Measure the voltage at the cargo compartment light terminal B (wiring harness-side). • Is the voltage 0 V?	Yes	Go to the next step.
5		No	Refer to the wiring diagram and verify whether or not there is a common connector between cargo compartment light terminal B and electrical supply unit (ESU) terminal 2F. 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 power supply. • Repair or replace the malfunctioning part. If there is no common connector: • Repair or replace the wiring harness which has a short to power supply. Go to the next step.
6	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Always reconnect all disconnected connectors. • Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) • Clear the DTC for the electrical supply unit (ESU) using the M-MDS. (See CLEARING DTC [ELECTRICAL SUPPLY UNIT (ESU)].) • Open the liftgate and turn the cargo compartment light switch on. • Retrieve the electrical supply unit (ESU) DTCs using the M-MDS. (See DTC INSPECTION [ELECTRICAL SUPPLY UNIT (ESU)].) • Is the same DTC displayed?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the electrical supply unit (ESU). (See ELECTRICAL SUPPLY UNIT (ESU) REMOVAL/INSTALLATION.) Go to the next step.
6		No	Go to the next step.
7	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 [ELECTRICAL SUPPLY UNIT (ESU)].)
7		No	DTC troubleshooting completed.