NO. 9 WATER TEMPERATURE GAUGE INDICATION IS DEFECTIVE
WATER TEMPERATURE GAUGE INDICATION IS DEFECTIVE POSSIBLE CAUSE TABLE
Is the tachometer normal?
4
Start the engine.
Does the ABS warning light turn off?
Yes Inspect the PCM or connectors.
No
Replace the instrument cluster.
5
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.
6
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 CAN
system-related module. Repair or
replace the malfunctioning part.
No
Replace the instrument cluster.
7
Turn the ignition switch 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.
8
Disconnect the negative battery cable.
Measure the resistance between the instrument
cluster connector terminals 1J and 1L.
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.
9
Water temperature gauge indication is defective
POSSIBLE CAUSE
PCM malfunction
Instrument cluster malfunction
Connector or pin malfunction
Short circuit in wiring harness between CAN-L, CAN-H and GND
2007 Mazda MX-5 Miata Sport
2007 ACCESSORIES & BODY, CAB Symptom Troubleshooting (Instrument Cluster) - MX-5 Miata
Microsoft
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