Symptom Chart

SYMPTOM CHART

Symptom	Repair order	Reference
No display is shown.	Power supply Clock body	Refer to CHECK POWER SUPPLY AND GROUND CIRCUIT , INSPECTION, Clock System.
The brightness does not change even when the night illumination control switch is operated.	Check combination meter DTC. Check clock illumination circuit. Check communication circuit between combination meter and clock.	Refer to CHECK ILLUMINATION CIRCUIT , INSPECTION, Clock System.
Ambient air temperature/fuel economy displays do not appear.	Communication circuit between combination meter and clock Clock body	Refer to CHECK CLOCK SYSTEM COMMUNICATION CIRCUIT , INSPECTION, Clock System.
"Err" is displayed at the ambient air temperature display.	Check communication circuit between combination meter and ambient air temperature sensor. Check combination meter DTC. 3. Check communication circuit between combination meter and clock.	Refer to CHECK AMBIENT TEMPERATURE METER SYSTEM COMMUNICATION CIRCUIT , INSPECTION, Clock System.
"Err" is displayed at the average fuel economy display.	Check communication circuit between combination meter and each module. Check communication circuit between combination meter and clock.	Refer to CHECK AVERAGE FUEL ECONOMY SYSTEM COMMUNICATION CIRCUIT , INSPECTION, Clock System.