Loading ...
Loading ...
Loading ...
4 CHECK COOLING FAN OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 34 and cooling fan relay-2 terminal 2, cooling fan relay-3 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 Joint connector-10
I Harness for open or short between cooling fan relays-2 and -3 and ECM
© Repair open circuit or short to ground or short to power in harness or connectors.
6 CHECK COOLING FAN RELAYS-2 AND -3
Check continuity between cooling fan relay-2, -3 terminals 3 and 5, 6 and 7 under the following conditions.
SEF591X
OK or NG
OK © GO TO 7.
NG © Replace cooling fan relays.
7 CHECK COOLING FAN MOTORS
Supply battery voltage between the following terminals and check operation.
SEF592X
OK or NG
OK © GO TO 8.
NG © Replace cooling fan motors.
DTC P0217 COOLANT OVERTEMPERATURE ENRICHMENT PROTECTION
Diagnostic Procedure (Cont’d)
EC-328
Loading ...
Loading ...
Loading ...