NO. 4 MIL ILLUMINATES [INSTRUMENT CLUSTER]

id0903d5807700

4	MIL illuminates
POSSIBLE CAUSE	•  PCM malfunction •  PCM stores DTC •  Instrument cluster malfunction •  Poor connection of instrument cluster connector, terminal damage •  Poor connection of PCM connector, terminal damage •  Short circuit in wiring harness between CAN-L, CAN-H and ground •  Open circuit in CAN wiring harness (CAN-L, CAN-H) •  CAN wiring harness (CAN-L, CAN-H) short each other

Diagnostic procedure

STEP	INSPECTION		ACTION
1	•  Start the engine. •  Does the MIL turn off?	Yes	Troubleshooting completed. (The system is normal.)
		No	Go to the next step.
2	•  Start the engine. •  Inspect the condition of the warning lights and indicator lights. •  Do two or more lights illuminate at the same time.	Yes	Go to Step 5.
		No	Go to the next step.
3	•  Retrieve the DTC related to the PCM using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [L8, LF, L5].) (See ON-BOARD DIAGNOSTIC TEST [MZR-CD (RF Turbo)].) (See ON-BOARD DIAGNOSTIC TEST [MZR-CD 2.2].) •  Is there any DTC retrieved?	Yes	Go to applicable troubleshooting procedure. (See DTC TABLE [L8, LF, L5].) (See DTC TABLE [MZR-CD (RF Turbo)].) (See DTC TABLE [MZR-CD 2.2].)
		No	Go to the next step.
4	•  Turn off the MIL using the M-MDS instrument cluster active command modes WL+IL. (See ACTIVE COMMAND MODES TABLE [INSTRUMENT CLUSTER].) •  Does the MIL turn off according to the active command modes?	Yes	Verify that the PCM connector is connected securely. If the PCM connector is poorly connection: •  Connect the PCM connector securely. If a malfunction is in the PCM connector: •  Replace the PCM. (See PCM REMOVAL/INSTALLATION [L8, LF, L5].) (See PCM REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].) (See PCM REMOVAL/INSTALLATION [MZR-CD 2.2].) If a malfunction is in the vehicle side connector: •  Repair or replace the malfunctioning part.
		No	Replace the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
5	•  Retrieve the DTC related to the instrument cluster using the M-MDS. (See DTC INSPECTION [INSTRUMENT CLUSTER].) •  Is there any DTC retrieved?	Yes	Go to applicable DTC inspection. (See DTC TABLE [INSTRUMENT CLUSTER].)
		No	Go to the next step.
6	•  Disconnect the negative battery cable. •  Measure the resistance between the DLC-2 terminals F and E. •  Is there resistance 54—66 ohms?	Yes	Go to next step.
		No	Go to step 8.
7	•  Inspect the DLC-2 terminals F and E for short to power supply or ground. •  Is there any malfunction?	Yes	Inspect the wiring harness and CAN system-related module Repair or replace the malfunctioning part.
		No	Replace the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
8	•  Switch the ignition to off. •  Inspect the instrument cluster connector terminals for poor connection (such as damaged/pulled-out pins, and corrosion). •  Are the resistance normal?	Yes	Go to the next step.
		No	Repair or replace the terminal.
9	•  Disconnect the negative battery cable. •  Measure the resistance between the instrument cluster connector terminals 2X and 2W. •  Is the resistance 114—126 ohms?	Yes	Inspect the wiring harness and CAN system-related module. Repair or Replace the malfunctioning part.
		No	Replace the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)