Diagnostic Procedure

Step	Inspection		Action
1	VERIFY OTHER RETRACTABLE FASTBACK CONTROL MODULE DTCs Clear the DTC for the retractable fastback control module using the M-MDS. (See CLEARING DTC [RETRACTABLE FASTBACK CONTROL MODULE] ). Retrieve the retractable fastback control module DTCs using the M-MDS. (See DTC INSPECTION [RETRACTABLE FASTBACK CONTROL MODULE] ). Is the DTCs U3000:44/U3000:45/U3000:49 displayed?	Yes	Replace the retractable fastback control module, then go to Step 4. (See RETRACTABLE FASTBACK CONTROL MODULE REMOVAL/INSTALLATION ).
1		No	Go to the next step.
2	TOP LOCK MOTOR CIRCUIT FOR SHORT TO POWER SUPPLY Switch the ignition off. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION ). Disconnect the retractable fastback control module and top lock motor connectors. Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION ). Switch the ignition ON (engine off or on). Measure the voltage at the following terminals (wiring harness-side): top lock motor terminal E top lock motor terminal A Is the voltage 0 V?	Yes	Go to the next step.
2		No	Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals: Retractable fastback control module terminal 2B and top lock motor terminal E Retractable fastback control module terminal 2F and top lock motor 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 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 4.
3	TOP LOCK MOTOR Inspect the top lock motor. (See ROOF LINK MOTOR INSPECTION ). Is the top lock motor normal?	Yes	Go to the next step.
3		No	Replace the top lock motor, then go to the next step. (See TOP LOCK MOTOR REMOVAL/INSTALLATION ).
4	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 retractable fastback control module using the M-MDS. (See CLEARING DTC [RETRACTABLE FASTBACK CONTROL MODULE] ). Retrieve the retractable fastback control module DTCs using the M-MDS. (See DTC INSPECTION [RETRACTABLE FASTBACK CONTROL MODULE] ). Is the same DTC displayed?	Yes	Repeat the inspection from Step 1. If the malfunction recurs, replace the retractable fastback control module. (See RETRACTABLE FASTBACK CONTROL MODULE REMOVAL/INSTALLATION ). Go to the next step.
4		No	Go to the next step.
5	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 [RETRACTABLE FASTBACK CONTROL MODULE] ).
5		No	DTC troubleshooting completed.