Diagnostic Procedure

STEP	INSPECTION		ACTION
1	Start the engine. Does the tachometer needle move smoothly? Does the tachometer needle indicate correct engine speed?	Yes	Troubleshooting completed. (The system is normal.)
1		No	Go to the next step.
2	Reactive the DTC of PCM using M-MDS. (See ON-BOARD DIAGNOSTIC TEST [MZR 2.5] .) Is the DTC detected?	Yes	Go to applicable DTC troubleshooting procedure. (See DTC TABLE [MZR 2.5] .)
2		No	Go to the next step.
3	Verify that the tachometer needle moves using M-MDS instrument cluster simulation function TACHOMTR. Does the tachometer needle move according to simulation function?	Yes	Go to the next step.
3		No	Replace the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION .)
4	Monitor the PCM PID RPM using the M-MDS. Start the engine and compare the M-MDS monitored value with the tachometer indication. Does the M-MDS monitored value correspond to the tachometer indication?	Yes	Go to the next step.
4		No	Inspect the CKP sensor, related wiring harness, installation, and pulse wheel condition. (See CRANKSHAFT POSITION (CKP) SENSOR INSPECTION [MZR 2.5] .)
5	Disconnect the negative battery cable. Measure the resistance between the DLC-2 terminals F and E. Is the resistance below 60 ohms ?	Yes	Go to the next step.
5		No	Go to Step 7.
6	Disconnect the negative battery cable. 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.
6		No	Replace the instrument cluster.
7	Switch the ignition OFF (LOCK). Inspect the instrument cluster connector terminals for poor connection (such as damaged/pulled-out pins, and corrosion). Are the terminals normal?	Yes	Go to the next step.
7		No	Repair or replace the terminal.
8	Disconnect the negative battery cable. Measure the resistance between the instrument cluster connector terminals B and D. Is the resistance 114-126 ohms ?	Yes	Inspect the wiring harness and CAN system-related module. Repair or replace the malfunctioning part.
8		No	Replace the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION .)