Diagnostic Procedure

Step	Inspection		Action
1	VERIFY PCM DTCs Retrieve the PCM DTCs using the M-MDS. (Refer to ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G 2.5T)] .) Is the DTC displayed?	Yes	Repair the malfunctioning part according to the applicable DTC troubleshooting. (Refer to DTC TABLE [PCM (SKYACTIV-G 2.5T)] .)
1		No	Go to the next step.
2	INSPECT BATTERY Inspect the battery. (Refer to BATTERY INSPECTION .) Is the battery normal?	Yes	Go to the next step.
2		No	Recharge or replace the battery, then go to Step 6. (Refer to BATTERY RECHARGING .) (Refer to BATTERY REMOVAL/INSTALLATION .)
3	INSPECT GENERATOR Inspect the generator. (Refer to GENERATOR INSPECTION .) Is the generator normal?	Yes	Go to the next step.
3		No	Replace the generator, then go to Step 6. (Refer to GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G 2.5T] .)
4	INSPECT AUTO LEVELING CONTROL MODULE CONNECTOR CONDITION Switch the ignition off. Disconnect the negative battery terminal. (Refer to NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .) Disconnect the auto leveling 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 6.
5	VERIFY AUTO LEVELING CONTROL MODULE POWER SUPPLY VOLTAGE Always reconnect all disconnected connectors. Connect the negative battery terminal. (Refer to NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .) Display PID VPWR_IG using the M-MDS. (Refer to PID/DATA MONITOR INSPECTION [AUTO LEVELING CONTROL MODULE] .) Is the voltage B+ ?	Yes	Go to the next step.
5		No	Inspect the METER1 10 A fuse. If the fuse is blown: Refer to the wiring diagram and verify whether or not there is a common connector between METER1 10 A fuse and auto leveling control module terminal N. 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 auto leveling control module terminal N. 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.
6	VERIFY THAT REPAIRS HAVE BEEN COMPLETED Always reconnect all disconnected connectors. Connect the negative battery terminal. (Refer to NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .) Clear the auto leveling control module DTCs using the M-MDS. (Refer to CLEARING DTC [AUTO LEVELING CONTROL MODULE] .) Switch the ignition ON (engine off or on) and wait for 5 s or more . Retrieve the auto leveling control module DTCs using the M-MDS. (Refer to DTC INSPECTION [AUTO LEVELING CONTROL MODULE] .) Is the same DTC displayed?	Yes	Repeat the inspection from Step 1. If the malfunction recurs, replace the auto leveling control module, then go to the next step. (Refer to AUTO LEVELING CONTROL MODULE REMOVAL/INSTALLATION .)
6		No	Go to the next step.
7	VERIFY IF OTHER DTCs DISPLAYED Are any other DTCs displayed?	Yes	Repair the malfunctioning part according to the applicable DTC troubleshooting. (Refer to DTC TABLE [AUTO LEVELING CONTROL MODULE] .)
7		No	DTC troubleshooting completed.