NO. 4 MIL ILLUMINATES


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


STEP	INSPECTION		ACTION
1	• Start the engine. • Does the MIL turn off?	Yes	The system is normal.
1	• Start the engine. • Does the MIL turn off?	No	Go to the next step.
2	• Are there a number of warning lights illuminated?	Yes	Go to Step 4.
2	• Are there a number of warning lights illuminated?	No	Go to the next step.
3	• Start the instrument cluster input/output check mode. • Does the MIL turn off with a check code other than 26?	Yes	Inspect the PCM (connection, etc.). If poor connection of PCM connector • Securely connect the PCM connector. If the PCM side connector is wrong • Replace the PCM. If the wiring harness-side connector is wrong • Repair or replace the pins and/or the connector.
3		No	Replace the instrument cluster.
4	• Disconnect the negative battery cable. • Measure the resistance between the DLC-2 terminals F and E. • Is the resistance 54-66 ohms?	Yes	Go to the next step.
4		No	Go to Step 6.
5	• Disconnect the negative battery cable. • Inspect the DLC-2 terminals F and E for short to power supply or GND. • Is there any malfunction?	Yes	Inspect the wiring harness and module connected with CAN. Repair or replace if necessary.
5		No	Replace the instrument cluster.
6	• Turn the ignition switch to OFF position. • Inspect the connection of the instrument cluster connector (24-pin). • Disconnect the instrument cluster connector (24-pin). • Inspect both the instrument cluster and wiring harness-side connector terminal 2X and 2W for poor connection (such as damaged/pulled-out pins, corrosion). • Are all the pins normal?	Yes	Replace the instrument cluster.
6		No	If poor connection of instrument cluster connector • Securely connect the instrument cluster connector. If the instrument cluster side connector is wrong • Replace the instrument cluster. If the wiring harness-side connector is wrong • Repair or replace the pins and/or the connector.