DTC Detecting Condition and Trouble Area
DIAGNOSTIC INFORMATION AND PROCEDURES REFERENCE CHART
| DTC detecting condition |
Trouble area |
P0481: Fan 2 Control Circuit
This DTC is detected if any one of the following conditions is met.
- Monitor signal of radiator cooling fan relay No. 2 and No. 3 drive circuit is high level (OFF) for 5 sec. even if command signal of radiator cooling fan is at high speed.
- Monitor signal of radiator cooling fan relay No. 2 and No. 3 drive circuit is low level (ON) for 5 sec. even if command signal of radiator cooling fan is NOT at high speed.
(2 D/C detection logic but MIL does not light up) |
- Radiator cooling fan relay No. 2 (coil side) and/or its circuit
- Radiator cooling fan relay No. 3 (coil side) and/or its circuit
- ECM
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