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3 CHECK COOLING FAN GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect cooling fan motor-1 harness connector and cooling fan motor-2 harness connector.
SEC007C
3. Check harness continuity between cooling fan relay-1 terminal 5 and cooling fan motor-1 terminal 2, cooling fan
motor-1 terminal 3 and body ground. Refer to Wiring Diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
5. Check harness continuity between cooling fan relay-1 terminal 7 and cooling fan motor-2 terminal 2, cooling fan
motor-2 terminal 3 and body ground. Refer to Wiring Diagram.
Continuity should exist.
6. Also check harness for short to ground and short to power.
OK or NG
OK © GO TO 4.
NG © Repair open circuit or short to ground or short to power in harness or connectors.
4 CHECK COOLING FAN OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 35 and cooling fan relay-1 terminal 2. Refer to Wiring Diagram.
Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OK © GO TO 6.
NG © GO TO 5.
5 DETECT MALFUNCTIONING PART
Check the following.
I Harness connectors E8, F17
I Harness for open or short between cooling fan relay-1 and ECM
© Repair open circuit or short to ground or short to power in harness or connectors.
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P1217 ENGINE OVER TEMPERATURE (OVERHEAT)
Diagnostic Procedure (Cont’d)
EC-501
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