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2 CHECK CKPS (POS) POWER SUPPLY CIRCUIT
1. Disconnect harness connectors F25, F171.
SEF511WB
2. Check voltage between harness connector F25 terminal 4 and ground with CONSULT-II or tester.
SEF323X
3. Also check harness for short to ground and short to power.
OK or NG
OK © GO TO 4.
NG © GO TO 3.
3 DETECT MALFUNCTIONING PART
Check the following.
I Harness connectors F25, F171
I Harness connectors E15, F18
I Harness for open or short between ECM and crankshaft position sensor (POS)
I Harness for open or short between ECM relay and crankshaft position sensor (POS)
© Repair open circuit or short to ground or short to power in harness or connectors.
4 CHECK CKPS (POS) GROUND CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between harness connector F25 terminal 2 and engine ground. Refer to Wiring Diagram.
Continuity should exist.
2. Also check harness for short to power.
OK or NG
OK © GO TO 5.
NG © Repair open circuit 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 P1336 CRANKSHAFT POSITION SENSOR (CKPS) (POS) (COG)
Diagnostic Procedure (Cont’d)
EC-527
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