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11 CHECK COOLING FAN MOTOR POWER SUPPLY AND GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect cooling fan motor harness connector.
AEC931A
3. Check harness continuity between relay terminal 3 and motor terminal 2, motor terminals 3, 4 and body ground. Refer
to Wiring Diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK 䊳 GO TO 12.
NG 䊳 Repair open circuit or short to ground or short to power in harness or connectors.
12 CHECK COOLING FAN RELAY OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 36 and relay terminal 1. Refer to Wiring Diagram.
Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OK 䊳 GO TO 14.
NG 䊳 GO TO 13.
13 DETECT MALFUNCTIONING PART
Check the following.
쐌 Harness connectors E43, M65
쐌 Harness connectors M58, F28
쐌 Harness for open or short between cooling fan relay and ECM
䊳 Repair open circuit or short to ground or short to power in harness or connectors.
DTC P1217 ENGINE OVERTEMPERATURE (OVERHEAT)
(WITH ELECTRIC COOLING FAN)
VG33E
Diagnostic Procedure (Cont’d)
EC-1060
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