Infiniti I30 (A33). Manual — part 258
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 P0335 CRANKSHAFT POSITION SENSOR (CKPS) (POS)
Diagnostic Procedure (Cont’d)
EC-347
5
CHECK CKPS (POS) INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 85 and harness connector F25 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
©
GO TO 6.
NG
©
Repair open circuit or short to ground or short to power in harness or connectors.
6
CHECK CKPS (POS) SUB-HARNESS CIRCUIT FOR OPEN AND SHORT
1. Disconnect CKPS (POS) harness connector.
SEF367Q
2. Check harness continuity between CKPS (POS) terminals and harness connector F171 terminals as follows.
MTBL0352
Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OK
©
GO TO 7.
NG
©
Repair open circuit or short to ground or short to power in harness or connectors.
7
CHECK CKPS (POS) INSTALLATION
Check that CKPS (POS) and HO2S1 (B2) harness clamp are installed correctly as shown below.
SEM222FC
OK or NG
OK
©
GO TO 8.
NG
©
Install CKPS (POS) correctly.
DTC P0335 CRANKSHAFT POSITION SENSOR (CKPS) (POS)
Diagnostic Procedure (Cont’d)
EC-348
8
CHECK CRANKSHAFT POSITION SENSOR (POS)-I
1. Disconnect crankshaft position sensor (POS) harness connector.
2. Loosen the fixing bolt of the sensor.
3. Remove the sensor.
4. Visually check the sensor for chipping.
SEF587P
OK or NG
OK
©
GO TO 9.
NG
©
Replace crankshaft position sensor (POS).
9
CHECK CRANKSHAFT POSITION SENSOR (POS)-II
1. Reconnect disconnected harness connectors.
2. Turn ignition switch “ON”.
3. Check voltage between ECM terminal 85 and ground by briefly touching the sensor core with a flat-bladed screwdriv-
ers.
SEF324X
OK or NG
OK
©
GO TO 10.
NG
©
Replace crankshaft position sensor (POS).
10
CHECK CKPS (POS) SHIELD CIRCUIT FOR OPEN AND SHORT
1. Disconnect harness connectors F25, F171.
2. Check harness continuity between harness connector F25 terminal 3 and engine ground. Refer to Wiring Diagram.
Continuity should exist.
3. Also check harness for short to power.
OK or NG
OK
©
GO TO 12.
NG
©
GO TO 11.
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0335 CRANKSHAFT POSITION SENSOR (CKPS) (POS)
Diagnostic Procedure (Cont’d)
EC-349
11
DETECT MALFUNCTIONING PART
Check the following.
I
Harness connectors F25, F171
I
Joint connector-18
I
Harness for open or short between harness connector F25 and engine ground
©
Repair open circuit or short to power in harness or connectors.
12
CHECK INTERMITTENT INCIDENT
Refer to “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-144.
©
INSPECTION END
DTC P0335 CRANKSHAFT POSITION SENSOR (CKPS) (POS)
Diagnostic Procedure (Cont’d)
EC-350
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст