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WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
• DTCs P0327 and P0328 are for the bank 1 knock sensor circuit.
• DTCs P0332 and P0333 are for the bank 2 knock sensor circuit.
• Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition
information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame
data can be helpful in determining whether the vehicle was running or stopped, whether the engine
was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the
time of a malfunction.
A136096E05
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(a) Disconnect the EA1 connector.
(b) Using lead wires, connect the connectors as follows.
(c) Warm up the engine.
(d) Run the engine at 3000 rpm for 10 seconds or more.
(e) Connect the intelligent tester to the DLC3.
(f) Turn the ignition switch to the ON position and turn the
intelligent tester on.
(g) Select the items: DIAGNOSIS / ENHANCED OBD II /
DTC INFO / CURRENT CODES.
(h) Read the DTCs.
Result
(i) Reconnect the EA1 connector.
B
A
1READ VALUE OF DTC OUTPUT (CHECK KNOCK SENSOR CIRCUIT)
G041090E10
Male Connector - Female Connector
Terminal 2 - Terminal 4
Terminal 1 - Terminal 3
Terminal 4 - Terminal 2
Terminal 3 - Terminal 1
Display Proceed to
DTCs that are same as when vehicle brought
in P0327, P0328
P0327, P0328 or P0332,
P0333
P0332, P0333A
DTCs that are different from when vehicle
brought in P0327, P0328
P0332, P0333 or
P0332, P0333 P0327, P0328B
Go to step 4
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2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–225
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(a) Disconnect the EA1 connector.
(b) Disconnect the E10 ECM connector.
(c) Measure the resistance according to the value(s) in the
table below.
Standard resistance:
Check for open
Check for short
(d) Reconnect the EA1 connector.
(e) Reconnect the ECM connector.
NG
OK
(a) Disconnect the E10 ECM connector.
(b) Turn the ignition switch to the ON position.
(c) Measure the voltage according to the value(s) in the
table below.
Standard voltage
(d) Reconnect the ECM connector.
NOTICE:
Fault may be intermittent. Check the wire harness
and connectors carefully and retest.
NG
2CHECK HARNESS OR CONNECTOR (EA1 CONNECTOR - ECM)
A114617E08
Tester Connection Specified Condition
EA1 female connector 2 - KNK1 (E10-29) Below 1
EA1 female connector 1 - EKNK (E10-28) Below 1
EA1 female connector 4 - KNK2 (E10-21) Below 1
EA1 female connector 3 - EKN2 (E10-20) Below 1
Tester Connection Specified Condition
EA1 female connector 2 or KNK1 (E10-29) - Body
ground10 k
or higher
EA1 female connector 1 or EKNK (E10-28) - Body
ground10 k
or higher
EA1 female connector 4 or KNK2 (E10-21) - Body
ground10 k
or higher
EA1 female connector 3 or EKN2 (E10-20) - Body
ground10 k
or higher
REPAIR OR REPLACE HARNESS OR
CONNECTOR (EA1 CONNECTOR - ECM)
3INSPECT ECM
G035655E14
Tester Connection Specified Condition
KNK1 (E10-29) - EKNK (E10-28) 4.5 to 5.5 V
KNK2 (E10-21) - EKN2 (E10-20) 4.5 to 5.5 V
REPLACE ECM (See page ES-498)
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ES–2262GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
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OK
(a) Disconnect the EA1 connector.
(b) Measure the resistance according to the value(s) in the
table below.
Standard resistance
(c) Reconnect the EA1 connector.
OK
NG
HINT:
• If DTC P0327 or P0328 has changed to P0332 or P0333,
check the knock sensor circuit on the right bank side.
• If DTC P0332 or P0333 has changed to P0327 or P0328,
check the knock sensor circuit on the left bank side.
(a) Disconnect the EA1 connector.
(b) Disconnect the K6 and K5 knock sensor connectors.
(c) Measure the resistance according to the value(s) in the
table below.
Standard resistance:
Check for open
Check for short
(d) Reconnect the EA1 connector.
(e) Reconnect the knock sensor connector. CHECK FOR INTERMITTENT PROBLEMS
4INSPECT KNOCK SENSOR
G042949E03
Tester Connection Specified Condition
EA1 male connector 1 - 2 120 to 280 k
EA1 male connector 3 - 4 120 to 280 k
CHECK FOR INTERMITTENT PROBLEMS
5CHECK HARNESS AND CONNECTOR (EA1 CONNECTOR - KNOCK SENSOR)
A114618E08
Tester Connection Specified Condition
EA1 male connector 2 - K6-2 Below 1
EA1 male connector 1 - K6-1 Below 1
EA1 male connector 4 - K5-2 Below 1
EA1 male connector 3 - K5-1 Below 1
Tester Connection Specified Condition
EA1 male connector 2 or K6-2 - Body ground 10 k
or higher
EA1 male connector 1 or K6-1 - Body ground 10 k
or higher
EA1 male connector 4 or K5-2 - Body ground 10 k
or higher
EA1 male connector 3 or K5-1 - Body ground 10 k
or higher
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NG
OKREPAIR OR REPLACE HARNESS OR
CONNECTOR (EA1 CONNECTOR - KNOCK
SENSOR)
REPLACE KNOCK SENSOR (See page ES-520)
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ES–2282GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
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DESCRIPTION
The Crankshaft Position (CKP) sensor system consists of a CKP sensor plate and a pickup coil. The
sensor plate has 34 teeth and is installed on the crankshaft. The pickup coil is made of an iron core and a
magnet.
The sensor plate rotates as each tooth passes through the pickup coil, and a pulse signal is created. The
pickup coil generates 34 signals per engine revolution. Based on these signals, the ECM calculates the
crankshaft position and engine RPM. Using these calculations, the fuel injection time and ignition timing
are controlled.
Reference: Inspection using an oscilloscope
HINT:
• The correct waveform is shown in the illustration.
• VV1+ and VV2+ stand for the VVT sensor signal, and NE+ stands for the CKP sensor signal.
DTC P0335 Crankshaft Position Sensor "A" Circuit
DTC P0339Crankshaft Position Sensor "A" Circuit Inter-
mittent
DTC No. DTC Detection Condition Trouble Area
P0335• No CKP sensor signal to ECM while cranking (1 trip
detection logic)
• No CKP sensor signal to ECM at engine speed of
600 rpm or more (1 trip detection logic)• Open or short in CKP sensor circuit
• CKP sensor
• Sensor plate (CKP sensor plate)
•ECM
P0339Under conditions (a), (b) and (c), no CKP sensor signal
to ECM for 0.05 seconds or more (1 trip detection
logic):
(a) Engine speed 1000 rpm or more
(b) Starter signal OFF
(c) 3 seconds or more have lapsed since starter signal
switched from ON to OFF• Open or short in CKP sensor circuit
• CKP sensor
• Sensor plate (CKP sensor plate)
•ECM
Item Content
Te r m i n a l sVV1+ - VV1-
VV2+ - VV2-
NE+ - NE-
Equipment Settings 5 V/Division, 20 ms./Division
Conditions Cranking or idling
A107148E09
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MONITOR DESCRIPTION
If there is no signal from the CKP sensor despite the engine revolving, the ECM interprets this as a
malfunction of the sensor.
If the malfunction is not repaired successfully, a DTC is set 10 seconds after the engine is next started.
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
All:
Crankshaft Position Sensor Range Check during Cranking P0335:
Crankshaft Position Sensor Range Check during Engine Running P0335:
TYPICAL MALFUNCTION THRESHOLDS
Crankshaft Position Sensor Range Check during Cranking P0335:
Crankshaft Position Sensor Range Check during Engine Running P0335:
COMPONENT OPERATING RANGE
Related DTCsP0335: Crankshaft position sensor range check during cranking
P0335: Crankshaft position sensor range check during engine running
Required Sensors / Components (Main) Crankshaft Position (CKP) sensor
Required Sensors / Components (Related) -
Frequency of Operation Continuous
Duration 3 times
MIL Operation Immediate
Sequence of Operation None
The monitor will run whenever these DTCs are not
presentNone
Sta r t e r OF F
Ignition switch ON
Battery voltage 7 V or more
Minimum battery voltage while starter ON Less than 11 V
Number of VVT sensor signal pulse 6 times
CMP sensor circuit fail Not detected
Engine speed 600 rpm or more
Sta r t e r OF F
Time after starter from ON to OFF 3 seconds or more
Number of crankshaft position sensor signal pulse 132 or less, or 174 or more
CKP sensor signal No signal
CKP sensor• CKP sensor output voltage fluctuates while crankshaft is revolving
• 34 CKP sensor signals per crankshaft revolution
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