Page 1238 of 3115
FI7050A01996A01997A19886
ECM
KNK1
KNK2 22
33
Female
Connector Male
Connector1
1EC1
E6
2 1
3 21
321
E6
EC1
Knock Sensor 1
Knock Sensor 2
- DIAGNOSTICSENGINE
DI-189
382 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
HINT:
DTC P0325 is for the bank 1 knock sensor circuit.
DTC P0330 is for the bank 2 knock sensor circuit.
Read freeze frame data using the hand-held tester or the OBD II scan tool. Freeze frame data records
the engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can
help determine if the vehicle was running or stopped, if the engine was warmed up or not, if the air-fuel
ratio was lean or rich, as well as other data from the time when a malfunction occurred.
1 Connect OBD II scan tool or hand-held tester, and check knock sensor circuit.
PREPARATION:
(a) Connect the OBD II scan tool or hand-held tester to the
DLC3.
(b) Disconnect the EC1 connector.
(c) Connect the terminals of the disconnected EC1 male con-
nector and EC1 female as follows.
Male connector eFemale connector
Terminal 2 e Terminal 3
Terminal 3 e Terminal 2
(d) Turn ignition switch ON and push the OBD II scan tool or
hand-held tester main switch ON.
(e) After the engine is warmed up, perform quick racing to
4,000 rpm 3 times.
CHECK:
Check the DTC.
RESULT:
Type IDTC same as when vehicle brought in
P0325 " P0325 or P0330 " P0330
Type IIDTC different to when vehicle brought in
P0325 " P0330 or P0330 " P0325
Type II Go to step 3.
Type I
Page 1239 of 3115
DI-190
- DIAGNOSTICSENGINE
383 Author: Date:
2004 LAND CRUISER (RM1071U)
2 Check for open and short in harness and connector between EC1 connector and
ECM (See page IN-36).
NG Repair or replace harness or connector.
OK
Replace ECM (See page SF-60).
3 Check for open and short in harness and connector between EC1 connector and
knock sensor (See page IN-36).
HINT:
If DTC P0325 has changed to P0330, check the knock sensor circuit on the bank 1 side.
If DTC P0330 has changed to P0325, check the knock sensor circuit on the bank 2 side.
NG Repair or replace harness or connector.
OK
Replace knock sensor.
Page 1240 of 3115
FI7059
FI7060A00069
G2 and NE Signal Waveforms
20 msec./Division (Idling)
10 msec./Division (Idling)5 V
/Division
G2
NE
5 V
/Division
G2
NE
- DIAGNOSTICSENGINE
DI-191
384 Author: Date:
2004 LAND CRUISER (RM1071U)
DTC P0335 Crankshaft Position Sensor ºAº Circuit
DTC P0339 Crankshaft Position Sensor ºAº Circuit In-
termittent
CIRCUIT DESCRIPTION
The crankshaft position sensor system consists of a crankshaft position sensor plate and a pick-up coil.
The sensor plate has 34 teeth and is installed on the crankshaft. The pick-up coil is made of an iron core
and magnet. The sensor plate rotates and as each tooth passes through the pick-up coil, a pulse signal is
created. The pick-up coil generates 34 signals for each engine revolution. Based on these signals, the ECM
calculates the crankshaft position and engine RPM. Using these calculations, the fuel injection time and igni-
tion timing are controlled.
DTC No.DTC Detecting ConditionTrouble Area
P0335
No crankshaft position sensor signal to ECM during crank-
ing (2 trip detection logic)
P0335No crankshaft position sensor signal to ECM with engine
speed 600 rpm or more (2 trip detection logic)
Open or short in crankshaftposition sensor circuit
P0339
In condition (a), (b) and (c), when no crankshaft position
sensor (NE) signal is input for 0.05 sec. or more. :
(1 trip detection logic)
(c) Engine revolution 1000 rpm or more
(d) STA signal is OFF
(e) 3 sec. or more has lapsed after STA signal is switched
from ON to OFF.Open or short in crankshaft position sensor circuit
Crankshaft position sensor
Signal plate
ECM
Reference: Inspection using the oscilloscope.
The correct waveform is as shown.
Tester ConnectionSpecified Condition
G2+ (E7-27) - G2- (E7-32)Ct fi hNE+ (E7-25) - NE- (E7-24)Correct waveform is as shown
DIC2D-01
Page 1241 of 3115
DI-192
- DIAGNOSTICSENGINE
385 Author: Date:
2004 LAND CRUISER (RM1071U)
MONITOR DESCRIPTION
If there is no signal from the crankshaft sensor even though the engine is revolving, the ECM interprets this
as a malfunction of the sensor.
MONITOR STRATEGY
Related DTCsP0335Crankshaft position sensor range check or ratio-
nality
Rid / tMain sensors/componentsCrankshaft position sensorRequired sensors/componentsRelated sensors/componentsEngine speed sensor
Frequency of operationContinuous
Duration
Case 1: 4.7 sec.
Case 2: 0.016 sec.
Case 3: 2 rev x 5 times
MIL operationCase 1: 2 driving cycles
Case 2, 3: 1 driving cycle
Sequence of operationNone
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
The monitor will run whenever the follow-
ing DTCs are not presentSee ºList of disable a monitorº (on page DI-3)
Case 1:
StarterON
Minimum battery voltage while starter ON-11 V
Case 2:
Engine speed600 rpm-
StarterOFF
Time after starter ON to OFF3 sec.-
Case 3:
Time after starter ON to OFF0.3 sec.-
Number of camshaft position sensor sig-
nal pulse1
Battery voltage7 V-
Minimum battery voltage while starter ON-11 V
TYPICAL MALFUNCTION THRESHOLDS
Detection CriteriaThreshold
Case 1:
Engine speed signalNo signal for 4.7 sec.
Case 2:
Engine speed signalNo signal for 0.016 sec.
Case 3:
Number of crankshaft position sensor signal pulse17 or more and 29 or less
Page 1242 of 3115
A19968
C1
Camshaft Position Sensor
C3
Crankshaft Position SensorRECM
NE+
NE-
E2 27
2 12 1
25
24
GE7
G2+
G2-
32
E7
E7
E7 (Shielded)
E7
E1
ECBR1
DD EE E L G (Shielded)
J17
J/C
BR
BR
- DIAGNOSTICSENGINE
DI-193
386 Author: Date:
2004 LAND CRUISER (RM1071U)
WIRING DIAGRAM
Page 1243 of 3115
A21026
Component Side
C3
Crankshaft Position Sensor
DI-194
- DIAGNOSTICSENGINE
387 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION PROCEDURE
HINT:
Read freeze frame data using the hand-held tester or the OBD II scan tool. Freeze frame data records
the engine conditions when a malfunction is detected. When troubleshooting it is useful for determining
whether the vehicle was running or stopped. the engine was warmed up or not, the air-fuel ratio lean
or rich, etc. at the time of the malfunction.
READ VALUE OF HAND-HELD TESTER OR OBD II SCAN TOOL
(a) Connect the hand-held tester or the OBD II scan tool to the DLC3.
(b) Start the engine and push the hand-held tester or the OBD II scan tool main switch ON.
(c) Select the item ºDIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / ENGINE SPDº.
The engine speed can be confirmed in DATA LIST using the hand-held tester or OBD II scan tool. If
there is no NE signals from the crankshaft position sensor despite the engine revolving, the engine
speed will be indicated as zero. If voltage output of the crankshaft position sensor is insufficient, the
engine speed will be indicated as lower RPM (than the actual RPM).
1 Check resistance of crankshaft position sensor.
PREPARATION:
Disconnect the C3 crankshaft position sensor connector.
CHECK:
Measure the resistance between terminals 1 and 2.
OK:
Tester ConnectionSpecified Condition
12985 to 1,600 W at cold1 - 21,265 to 1,890 W at hot
NOTICE:
º Coldº and ºHotº shown above mean the temperature of
the coils themselves. ºColdº is form -10°C (14°F) to 50°C
(122°F) and ºHotº is from 50°C (122°F) to 100°C (212°F).
NG Replace crankshaft position sensor.
OK
Page 1244 of 3115
A21027
Wire Harness Side
Crankshaft Position Sensor C3
A21028
E7
ECM ConnectorNE- NE+
- DIAGNOSTICSENGINE
DI-195
388 Author: Date:
2004 LAND CRUISER (RM1071U)
2 Check for open and short in harness and connector between ECM and
crankshaft position sensor.
PREPARATION:
(a) Disconnect the C3 crankshaft position sensor connector.
(b) Disconnect the E7 ECM connector.
CHECK:
Measure the resistance between the wire harness side connec-
tors.
OK:
Tester ConnectionSpecified Condition
Crankshaft position sensor (C3-1) -
NE+ (E7-25)Below 1 W
Crankshaft position sensor (C3-2) -
NE- (E7-24)Below 1 W
Crankshaft position sensor (C3-1) or
NE+ (E7-25) - Body ground10 kW or higher
Crankshaft position sensor (C3-2) or
NE- (E7-24) - Body ground10 kW or higher
NG Repair or replace harness or connector.
OK
3 Check sensor installation (crankshaft position sensor).
CHECK:
Check the crankshaft position sensor installation.
NG Tighten sensor.
OK
Page 1245 of 3115
DI-196
- DIAGNOSTICSENGINE
389 Author: Date:
2004 LAND CRUISER (RM1071U)
4 Inspect teeth of sensor plate.
PREPARATION:
Remove the crankshaft angle sensor plate (See page EM-15).
CHECK:
Check the teeth of sensor plate.
NG Replace sensor plate.
OK
Replace ECM (See page SF-60).
