DTC U3003:16 [POWER LIFTGATE (PLG) CONTROL MODULE]

id0902o8049600

Description

Power liftgate (PLG) control module power supply voltage low input

Detection condition

•  Power liftgate (PLG) control module detects that the power supply circuit voltage that is less than the specification.

Fail-safe

•  Stops the power liftgate (PLG) system operation.

Possible cause

•  DTCs are stored in the PCM

•  DTCs are stored in the rear body control module (RBCM)

•  Battery malfunction

•  Generator malfunction

•  Power liftgate (PLG) control module connector or terminal malfunction

•  Power liftgate (PLG) control module power supply circuit malfunction

―  Short to ground in the wiring harness between the following terminals:

•  C/U IG1 15 A fuse―Power liftgate (PLG) control module terminal 1AD

•  MAIN 200 A fuse―Power liftgate (PLG) control module terminal 2I

―  C/U IG1 15 A fuse malfunction

―  PLG 20 A fuse malfunction

―  CABIN.+B 50 A fuse malfunction

―  Open circuit in wiring harness between the following terminals:

•  IG1 relay―Power liftgate (PLG) control module terminal 1AD

•  Battery positive terminal―Power liftgate (PLG) control module terminal 2I

•  Rear body control module (RBCM) connector or terminal malfunction

•  Short to ground in the wiring harness between rear body control module (RBCM) terminal 4F and power liftgate (PLG) control module terminal 1AA

•  Open circuit in wiring harness between rear body control module (RBCM) terminal 4F and power liftgate (PLG) control module terminal 1AA

•  Power liftgate (PLG) control module malfunction

Description	Power liftgate (PLG) control module power supply voltage low input
Detection condition	• Power liftgate (PLG) control module detects that the power supply circuit voltage that is less than the specification.
Fail-safe	• Stops the power liftgate (PLG) system operation.
Possible cause	• DTCs are stored in the PCM • DTCs are stored in the rear body control module (RBCM) • Battery malfunction • Generator malfunction • Power liftgate (PLG) control module connector or terminal malfunction • Power liftgate (PLG) control module power supply circuit malfunction ― Short to ground in the wiring harness between the following terminals: • C/U IG1 15 A fuse―Power liftgate (PLG) control module terminal 1AD • MAIN 200 A fuse―Power liftgate (PLG) control module terminal 2I ― C/U IG1 15 A fuse malfunction ― PLG 20 A fuse malfunction ― CABIN.+B 50 A fuse malfunction ― Open circuit in wiring harness between the following terminals: • IG1 relay―Power liftgate (PLG) control module terminal 1AD • Battery positive terminal―Power liftgate (PLG) control module terminal 2I • Rear body control module (RBCM) connector or terminal malfunction • Short to ground in the wiring harness between rear body control module (RBCM) terminal 4F and power liftgate (PLG) control module terminal 1AA • Open circuit in wiring harness between rear body control module (RBCM) terminal 4F and power liftgate (PLG) control module terminal 1AA • Power liftgate (PLG) control module malfunction

Diagnostic Procedure

Step	Inspection		Action
1	VERIFY PCM DTCs • Retrieve the PCM DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G 2.5T)].) (See ON-BOARD DIAGNOSTIC TEST [PCM (WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5))].) (See ON-BOARD DIAGNOSTIC TEST [PCM (WITHOUT CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5))].) • Are any DTCs displayed?	Yes	Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-G 2.5T)].) (See DTC TABLE [PCM (WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5))].) (See DTC TABLE [PCM (WITHOUT CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5))].) (See DTC TABLE [PCM (SKYACTIV-D 2.2)].)
1		No	Go to the next step.
2	VERIFY REAR BODY CONTROL MODULE (RBCM) DTCs • Retrieve the rear body control module (RBCM) DTCs using the M-MDS. (See DTC INSPECTION [REAR BODY CONTROL MODULE (RBCM)].) • Are any DTCs displayed?	Yes	Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [REAR BODY CONTROL MODULE (RBCM)].)
2		No	Go to the next step.
3	INSPECT BATTERY • Inspect the battery. (See BATTERY INSPECTION.) • Is the battery normal?	Yes	Go to the next step.
3		No	Recharge or replace the battery, then go to Step 10. (See BATTERY REMOVAL/INSTALLATION [WITHOUT CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-D 2.2].) (See BATTERY REMOVAL/INSTALLATION [WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.5T].)
4	INSPECT GENERATOR • Inspect the generator. (See GENERATOR INSPECTION [WITHOUT CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].) (See GENERATOR INSPECTION [WITHOUT i-ELOOP (WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5))].) (See GENERATOR INSPECTION [SKYACTIV-G 2.5T].) (See GENERATOR INSPECTION [SKYACTIV-D 2.2].) (See GENERATOR INSPECTION [WITH i-ELOOP (SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION))].) • Is the generator normal?	Yes	Go to the next step.
4		No	Replace the generator, then go to Step 10. (See GENERATOR REMOVAL/INSTALLATION [WITHOUT CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].) (See GENERATOR REMOVAL/INSTALLATION [WITHOUT i-ELOOP (WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5))].) (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G 2.5T].) (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].) (See GENERATOR REMOVAL/INSTALLATION [WITH i-ELOOP (SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION))].)
5	INSPECT POWER LIFTGATE (PLG) CONTROL MODULE CONNECTOR CONDITION • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Disconnect the power liftgate (PLG) control module 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.
5		No	Repair or replace the connector, then go to Step 10.
6	VERIFY POWER LIFTGATE (PLG) CONTROL MODULE POWER SUPPLY VOLTAGE • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off or on). • Measure the voltage at the following terminals (wiring harness-side): ― Power liftgate (PLG) control module terminal 1AD ― Power liftgate (PLG) control module terminal 2I • Is the voltage B+?	Yes	Go to the next step.
6		No	Inspect the C/U IG1 15 A fuse, PLG 20 A fuse, and CABIN.+B 50 A fuse. • Any fuse is blown: ― Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals: • C/U IG1 15 A fuse―Power liftgate (PLG) control module terminal 1AD • MAIN 200 A fuse―Power liftgate (PLG) control module terminal 2I 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. • Replace the fuse. • Any fuse is damaged: ― Replace the fuse. • All fuses are normal: ― Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals: • IG1 relay―Power liftgate (PLG) control module terminal 1AD • Battery positive terminal―Power liftgate (PLG) control module terminal 2I 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 10.
7	INSPECT REAR BODY CONTROL MODULE CONNECTOR CONDITION • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Disconnect the rear body control module 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 10.
8	INSPECT POWER LIFTGATE (PLG) CONTROL MODULE POWER SUPPLY CIRCUIT FOR SHORT TO GROUND • Verify that the rear body control module (RBCM) terminal and power liftgate (PLG) control module connectors are disconnected. • Inspect for continuity between rear body control module (RBCM) terminal 4F (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 rear body control module (RBCM) terminal 4F and power liftgate (PLG) control module terminal 1AA. 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 10.
8		No	Go to the next step.
9	INSPECT POWER LIFTGATE (PLG) CONTROL MODULE POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT • Verify that the rear body control module (RBCM) terminal and power liftgate (PLG) control module connectors are disconnected. • Inspect for continuity between rear body control module (RBCM) terminal 4F (wiring harness-side) and power liftgate (PLG) control module terminal 1AA (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 rear body control module (RBCM) terminal 4F and power liftgate (PLG) control module terminal 1AA. 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 the next step.
10	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Always reconnect all disconnected connectors. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Clear the DTC for the power liftgate (PLG) control module using the M-MDS. (See CLEARING DTC [POWER LIFTGATE (PLG) CONTROL MODULE].) • Retrieve the power liftgate (PLG) control module DTCs using the M-MDS. (See DTC INSPECTION [POWER LIFTGATE (PLG) CONTROL MODULE].) • Is the same DTC displayed?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the power liftgate (PLG) control module. (See POWER LIFTGATE (PLG) CONTROL MODULE REMOVAL/INSTALLATION.) Go to the next step.
10		No	Go to the next step.
11	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 [POWER LIFTGATE (PLG) CONTROL MODULE].)
11		No	DTC troubleshooting completed.