2007 NISSAN 350Z P0327

EC-382
DTC P0327, P0328, P0332, P0333 KS
Revision: 2006 November2007 350Z
BANK 2
TBWT1644E

DTC P0327, P0328, P0332, P0333 KS
EC-383
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Revision: 2006 November2007 350Z
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic ProcedureNBS00081
1. CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-I
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check resistance between ECM terminal 73 (bank 1), 69 (bank 2) and ground. Refer to Wiring Diagram.
NOTE:
It is necessary to use an ohmmeter which can measure more than 10 MΩ.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2. CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-II
1. Disconnect knock sensor harness connector.
2. Check harness continuity between ECM terminal 73 (bank 1),
69 (bank 2) and knock sensor terminal 1.
Refer to Wiring Diagram.
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.

Harness connectors F48, F251

Harness for open or short between ECM and knock sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
69 W Knock sensor (bank 2)[Engine is running]

Idle speedApproximately 2.5V
72 —Sensor ground
[Knock sensor (bank 1),
Knock sensor (bank 2)][Engine is running]

Warm-up condition

Idle speedApproximately 0V
Resistance: Approximately 532 - 588 kΩ [at 20°C (68°F)]
1 : Knock sensor (bank 1)
2 : Knock sensor (bank 2)
Continuity should exist.
PBIB3505E

EC-384
DTC P0327, P0328, P0332, P0333 KS
Revision: 2006 November2007 350Z
4. CHECK KNOCK SENSOR
Refer to EC-385, "
Component Inspection" .
OK or NG
OK >> GO TO 5.
NG >> Replace knock sensor.
5. CHECK GROUND CONNECTIONS
Models with VDC system, navigation system or telephone
1. Turn ignition switch OFF.
2. Loosen and retighten ground screws on the body. Refer to EC-150, "
Ground Inspection" .
Models without VDC system, navigation system and telephone
1. Turn ignition switch OFF.
2. Loosen and retighten ground screws on the body. Refer to EC-150, "
Ground Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Repair or replace ground connections.
1. Body ground E17 2. Body ground E43 3. Body ground B102
:Vehicle front
1. Body ground E17 2. Body ground E43 3. Body ground F152
(Passenger side view with dash side
finisher removed)
:Vehicle front
PBIB3560E
PBIB3561E

DTC P0327, P0328, P0332, P0333 KS
EC-385
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EC
Revision: 2006 November2007 350Z
6. CHECK KNOCK SENSOR SHIELD CIRCUIT FOR OPEN AND SHORT
1. Disconnect knock sensor harness connector.
2. Check harness continuity between ECM terminal 72 and knock sensor terminal 2.
Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 8.
NG >> GO TO 7.
7. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors F48, F251

Harness for open or short between ECM and knock sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK INTERMITTENT INCIDENT
Refer to EC-141, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionNBS00082
KNOCK SENSOR
Check resistance between knock sensor terminal 1 and ground.
NOTE:
It is necessary to use an ohmmeter which can measure more
than 10 MΩ.
CAUTION:
Do not use any knock sensors that have been dropped or phys-
ically damaged. Use only new ones.
Removal and InstallationNBS00083
KNOCK SENSOR
Refer to EM-107, "CYLINDER BLOCK" . Continuity should exist.
Resistance: Approximately 532 - 588 kΩ [at 20°C (68°F)]
SEF111Y