1A-210 Engine General Information and Diagnosis:
2 Electric load signal circuit check
1) Start engine and select “Data List” mode on scan tool.
2) Check electric load signal under following conditions
respectively.
Blower fan signal (Manual A/C model)
Blower speed selector turned OFF or 1st position:
OFF
Blower speed selector turned to 2nd position or
more: ON
Blower fan signal (Auto A/C model)
Blower speed selector OFF or 4th position or less:
OFF
Blower speed selector turned to 6th position or
more: ON
Radiator fan signal
Engine coolant temperature is lower than 95 °C (103
°F): OFF
Engine coolant temperature is higher than 97.5 °C
(207.5 °F): ON
Electric load signal
Engine running, rear defogger switch, small light or
headlight switch OFF: OFF
Engine running, rear defogger switch, small light or
headlight switch ON: ON
Is check result satisfactory?
Electric load signal
circuit is in good
condition.
Check defective signal
circuit.
Step Action Yes No
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