DTC U300A:62 [POWER LIFTGATE (PLG) CONTROL MODULE]

id0902o8049900

Description	IG1 relay circuit malfunction
Detection condition	• Any of the following conditions is met. ? Power liftgate (PLG) control module detects an open circuit or short to ground in IG1 relay circuit for 5 s or more with the ignition switched ON (engine off or on). ? Power liftgate (PLG) control module detects a short to power supply in IG1 relay circuit for 1 s or more with the ignition switched off.
Fail-safe	• Stops the power liftgate (PLG) system operation.
Possible cause	• IG1 relay malfunction • Short to ground in wiring harness between MAIN 200 A fuse and IG1 relay terminal D • Open circuit in wiring harness between battery positive terminal and IG1 relay terminal D • Power liftgate (PLG) control module connector or terminal malfunction • Wiring harness between IG1 relay terminal C and power liftgate (PLG) control module terminal 1AD malfunction ? Short to ground in wiring harness between IG1 relay terminal C and power liftgate (PLG) control module terminal 1AD malfunction ? C/U IG1 15 A fuse malfunction • Short to power supply in wiring harness between IG1 relay terminal C and power liftgate (PLG) control module terminal 1AD • Open circuit in wiring harness between IG1 relay terminal C and power liftgate (PLG) control module terminal 1AD • Power liftgate (PLG) control module malfunction

Diagnostic Procedure

Step	Inspection		Action
1	INSPECT IG1 RELAY • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Remove the IG1 relay. (See RELAY LOCATION.) • Inspect the IG1 relay. (See RELAY INSPECTION.) • Is the IG1 relay normal?	Yes	Go to the next step.
1		No	Replace the IG1 relay, then Go to Step 8. (See RELAY LOCATION.)
2	INSPECT IG1 RELAY CIRCUIT FOR SHORT TO GROUND • Verify that the IG1 relay is removed. • Inspect for continuity between IG1 relay terminal D (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 MAIN 200 A fuse and IG1 relay terminal D. 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. Go to Step 8.
2		No	Go to the next step.
3	INSPECT IG1 RELAY CIRCUIT FOR OPEN CIRCUIT • Verify that the IG1 relay is removed. • Inspect for continuity between battery positive terminal and IG1 relay terminal D (wiring harness-side). • Is there continuity?	Yes	Go to the next step.
3		No	Refer to the wiring diagram and verify whether or not there is a common connector between battery positive terminal and IG1 relay terminal D. 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 8.
4	INSPECT POWER LIFTGATE (PLG) CONTROL MODULE CONNECTOR CONDITION • 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.
4		No	Repair or replace the connector, then Go to Step 8.
5	INSPECT IG1 RELAY CIRCUIT FOR SHORT TO GROUND • Verify that the IG1 relay is removed. • Verify that the power liftgate (PLG) control module connector is disconnected. • Inspect for continuity between the following terminals (wiring harness-side) and body ground: ? IG1 relay terminal C ? Power liftgate (PLG) control module terminal 1AD • Is there continuity?	Yes	Inspect the C/U IG1 15 A fuse. • If the fuse is blown: ? Refer to the wiring diagram and verify whether or not there is a common connector between C/U IG1 15 A fuse and power liftgate (PLG) control module terminal 1AD. 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. • If the fuse is damaged: ? Replace the fuse. • If the fuse is normal: ? Refer to the wiring diagram and verify whether or not there is a common connector between IG1 relay terminal C and C/U IG1 15 A fuse. 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 8.
5		No	Go to the next step.
6	INSPECT IG1 RELAY CIRCUIT FOR SHORT TO POWER SUPPLY • Verify that the IG1 relay is removed. • Verify that the power liftgate (PLG) control module connector is disconnected. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off or on). • Measure the voltage at the power liftgate (PLG) control module terminal 1AD (wiring harness-side). • Is the voltage 0 V?	Yes	Go to the next step.
6		No	Refer to the wiring diagram and verify whether or not there is a common connector between IG1 relay terminal C and power liftgate (PLG) control module terminal 1AD. 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 Step 8.
7	INSPECT IG1 RELAY CIRCUIT FOR OPEN CIRCUIT • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Verify that the IG1 relay is removed. • Verify that the power liftgate (PLG) control module connector is disconnected. • Inspect for continuity between IG1 relay terminal C (wiring harness-side) and power liftgate (PLG) control module terminal 1AD (wiring harness-side). • Is there continuity?	Yes	Go to the next step.
7		No	Inspect the C/U IG1 15 A fuse. • If the fuse is damaged: ? Replace the fuse. • If the fuse is normal: ? Refer to the wiring diagram and verify whether or not there is a common connector between IG1 relay terminal C and power liftgate (PLG) control module terminal 1AD. 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.
8	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].) • Switch the ignition off and wait for 1 s or more. • Switch the ignition ON (engine off or on) and wait for 1 s or more. • 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.
8		No	Go to the next step.
9	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].)
9		No	DTC troubleshooting completed.