2001 NISSAN PATROL ignition

Diagnostic Procedure
1 INSPECTION START
Do you have CONSULT-II?
Yes or No
YescGO TO 2.
NocGO TO 3.
2 CHECK COOLING FAN OPERATION
With CONSULT-II
1. Turn ignition switch ªONº.
2. Perform ªCOOLING FANº in ªACTIVE TESTº mode with CONSULT-II.
SEF646X
3. Make sure that cooling fan-1 operates.
OK or NG
OKcGO TO 12.
NGcGO TO 4.
3 CHECK COOLING FAN OPERATION
Without CONSULT-II
1. Turn ignition switch ªOFFº.
2. Disconnect engine coolant temperature sensor harness connector.
3. Connect 150Wresistor to engine coolant temperature sensor harness connector.
4. Restart engine and make sure that cooling fan operates.
MEC475B
OK or NG
OKcGO TO 12.
NGcGO TO 4.
DTC 0208 OVER HEAT
EC-2011

4 CHECK COOLING FAN POWER SUPPLY CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect cooling fan relay-1.
SEF690V
3. Turn ignition switch ªONº.
4. Check voltage between cooling fan relay-1 terminals 1, 5 and ground with CONSULT-II or tester.
SEF607X
OK or NG
OKcGO TO 6.
NGcGO TO 5.
5 DETECT MALFUNCTIONING PART
Check the following.
+Fuse block (J/B) connector E112
+10A fuse or 20A fuse
+30A fusible links
+Harness for open or short between cooling fan relay-1 and fuse
+Harness for open or short between cooling fan relay-1 and battery
cRepair open circuit or short to ground or short to power in harness or connectors.
DTC 0208 OVER HEAT
Diagnostic Procedure (Cont'd)
EC-2012

6 CHECK COOLING FAN GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch ªOFFº.
2. Disconnect cooling fan motor-1 harness connector.
SEF691V
3. Check harness continuity between cooling fan relay-1 terminal 3 and cooling fan motor-1 terminals 1, 3, cooling fan motor-1 ter-
minals 2, 4 and body ground. Refer to Wiring Diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OKcGO TO 7.
NGcRepair open circuit or short to ground or short to power in harness or connectors.
7 CHECK COOLING FAN OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 14 and cooling fan relay-1 terminal 1. Refer to Wiring Diagram.
Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OKcGO TO 9.
NGcGO TO 8.
8 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors E127, M21
+Harness connectors M52, F7
+Harness for open or short between cooling fan relay-1 and ECM
cRepair open circuit or short to ground or short to power in harness or connectors.
9 CHECK COOLING FAN RELAY-1
Refer to ªComponent Inspectionº, EC-2016.
OK or NG
OKcGO TO 10.
NGcReplace cooling fan relay.
DTC 0208 OVER HEAT
Diagnostic Procedure (Cont'd)
EC-2013

Wiring Diagram Ð POWER Ð
BATTERY POWER SUPPLY Ð IGNITION SW. IN ANY POSITION
TEL373M
POWER SUPPLY ROUTING/WAGON AND HARDTOP MODELS
EL-2005

ACCESSORY POWER SUPPLY Ð IGNITION SW. IN ªACCº OR ªONº
TEL377M
POWER SUPPLY ROUTING/WAGON AND HARDTOP MODELS
Wiring Diagram Ð POWER Ð (Cont'd)
EL-2009

IGNITION POWER SUPPLY Ð IGNITION SW. IN ªONº AND/OR ªSTARTº
TEL378M
POWER SUPPLY ROUTING/WAGON AND HARDTOP MODELS
Wiring Diagram Ð POWER Ð (Cont'd)
EL-2010

Electrical Components Inspection
KEY SWITCH (insert)
Check continuity between terminals when key is inserted in igni-
tion key cylinder and key is removed from ignition key cylinder.
Terminal No. Condition Continuity
V1-V2Key is inserted. Yes
Key is removed. No
DRIVER SIDE DOOR SWITCH
Check continuity between terminals when door switch is pushed
and released.
Terminal No. Condition Continuity
V1-V3Door switch is pushed. No
Door switch is released. Yes
SEL015WB
SEL039X
WARNING CHIME/WAGON AND HARDTOP MODELS
EL-2077

System Description
WIPER OPERATION
The rear wiper switch is controlled by a ring built into the combination switch.
There are two wiper switch positions:
+ON (LO speed)
+INT (Intermittent)
With the ignition switch in the ON position, power is supplied
+through 10A fuse (No.
18, located in the fuse block)
+to rear wiper motor terminal
V4, and
+to rear wiper amplifier terminal
V5.
Low speed wiper operation
Ground is supplied to rear wiper switch terminalV24through body grounds.
When the rear wiper is placed in the ON position, ground is supplied
+through rear wiper switch terminal
V22
+to rear wiper relay terminalV6.
Then ground is supplied
+to rear wiper motor terminal
V1
+through rear wiper amplifier terminalsV2andV3.
With power and ground supplied, the wiper motor operates.
Auto stop operation
With the rear wiper switch turned OFF, rear wiper motor will continue to operate until wiper arm reaches
rear window base.
When wiper arm is not located at base of rear window with rear wiper switch OFF, ground is supplied
+to rear wiper motor terminal
V1
+through rear wiper amplifier terminalsV2,V7and
+through rear wiper motor terminal
V3, in order to continue rear wiper motor operation at low speed.
Ground is also supplied
+to rear wiper motor terminal
V2
+through body grounds.
When wiper arm reaches base of rear window, rear wiper motor terminals
V3andV4are connected instead
of terminals
V2andV3. Rear wiper motor will then stop wiper arm at the PARK position.
Intermittent operation
The rear wiper motor operates the wiper arm one time at low speed at an interval of approximately 7 sec-
onds.
When the rear wiper switch is placed in the INT position, ground is supplied
+to rear wiper amplifier terminal
V1
+through rear wiper switch terminalV21.
Then the rear wiper motor operates intermittently in the same manner as the low speed wiper operation.
WASHER OPERATION
With the ignition switch in the ACC or ON position, power is supplied
+through 10A fuse (No.
18, located in the fuse block)
+to rear washer motor terminal
V2.
When the ring is turned WASH position, ground is supplied
+to rear washer motor terminal
V1, and
+to rear wiper amplifier terminal
V4
+through terminalV23of rear wiper switch.
With power and ground is supplied, the rear washer motor operates.
The rear wiper motor operates when the ring is turned to WASH position for one second or more and for
approximately 3 seconds after the ring is released. This feature is controlled by the rear wiper amplifier in
the same manner as the low speed wiper operation.
REAR WIPER AND WASHER/WAGON AND HARDTOP MODELS
EL-2078