NO. 9 WATER TEMPERATURE GAUGE INDICATION IS DEFECTIVE [INSTRUMENT CLUSTER]

id0903d5808200

9	Water temperature gauge indication is defective
POSSIBLE CAUSE	•  PCM malfunction •  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 water temperature gauge needle move to medium range gradually and stay there?	Yes	Troubleshooting completed. (The system is normal.)
		No	Go to the next step.
2	•  Retrieve the DTC of 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.
3	•  Start the engine. •  Verify that the tachometer and speedometer indications. •  Do the tachometer and speedometer work properly?	Yes	Go to the next step.
		No	Go to Step 5.
4	•  Verify that the heat gauge indication when following commands are send to instrument cluster using M-MDS active command modes ECT_GAUGE. (See ACTIVE COMMAND MODES TABLE [INSTRUMENT CLUSTER].) Note •  The simulation activation values (%) are which 100 °C is assumed to be 100 % (1 °C = 1 %). ―  Activate 50 %: 0 °C indicates ―  Activate 52 %: 12.5 °C indicates ―  Activate 70 %: 45 °C indicates •  Does the water temperature gauge move according to active command modes?	Yes	Verify that the PCM is connected securely. If the PCM is poor connection: Connect the connector securely. If malfunction is in the PCM side connector: Replace 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 malfunction is in vehicle side connector: Repair or replace malfunctioning part.
		No	Replace the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
5	•  Retrieve the DTC of 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 the resistance 54—66 ohms?	Yes	Go to the next step.
		No	Go to Step 7.
7	•  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.
		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 terminals 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.)