Nissan Terrano model r20 series 2004. Instruction — part 136
Wiring Diagram
LHD MODELS
YEC198A
HEAT UP SWITCH
ZD30DDTi
EC-266
Diagnostic Procedure
1
INSPECTION START
Do you have CONSULT-II?
Yes or No
Yes
E
GO TO 2.
No
E
GO TO 3.
2
CHECK OVERALL FUNCTION-I
With CONSULT-II
1. Turn ignition switch “ON”.
2. Check “WARM UP SW” in “DATA MONITOR” mode with CONSULT-II under the following conditions.
SEF302Z
OK or NG
OK
E
GO TO 4.
NG
E
GO TO 5.
3
CHECK OVERALL FUNCTION-I
Without CONSULT-II
1. Turn ignition switch “ON”.
2. Check voltage between ECM terminal 59 and ground under the following conditions.
SEF303Z
OK or NG
OK
E
GO TO 4.
NG
E
GO TO 5.
HEAT UP SWITCH
ZD30DDTi
EC-267
4
CHECK OVERALL FUNCTION-II
Check heat up switch indicator in the heat up switch under the following conditions.
MTBL1846
OK or NG
OK
E
INSPECTION END
NG
E
GO TO 9.
5
CHECK HEAT UP SWITCH POWER SUPPLY CIRCUIT
1. Turn heat up switch “OFF”.
2. Turn ignition switch “OFF”.
3. Disconnect heat up switch harness connector.
4. Turn ignition switch “ON”.
5. Check voltage between heat up switch terminal 2 and ground with CONSULT-II or tester.
MEC983D
Voltage: Battery voltage
OK or NG
OK
E
GO TO 7.
NG
E
GO TO 6.
6
DETECT MALFUNCTIONING PART
Check the following.
I
Fuse block (J/B) connector F48
I
10A fuse
I
Harness for open or short between heat up switch and fuse
E
Repair open circuit or short to ground or short to power in harness or connectors.
7
CHECK HEAT UP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 59 and heat up switch terminal 1. Refer to Wiring Diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK
E
GO TO 7.
NG
E
Repair open circuit or short to ground or short to power in harness or connectors.
HEAT UP SWITCH
ZD30DDTi
Diagnostic Procedure (Cont’d)
EC-268
8
CHECK HEAT UP SWITCH
Check continuity between heat up switch terminals 1 and 2 under the following conditions.
MEC984D
MTBL1321
OK or NG
OK
E
GO TO 12.
NG
E
Replace heat up switch.
9
CHECK HEAT UP SWITCH INDICATOR CIRCUIT FOR OPEN AND SHORT
1. Turn heat up switch “OFF”.
2. Turn ignition switch “OFF”.
3. Disconnect heat up switch harness connector.
4. Check harness continuity between heat up switch terminals 1 and 4, heat up switch terminal 3 and body ground. Refer to Wir-
ing Diagram.
Continuity should exist.
5. Also check harness for short to ground and short to power.
OK or NG
OK
E
GO TO 11.
NG
E
GO TO 10.
10
DETECT MALFUNCTIONING PART
Check the following.
I
Harness connectors F108, E225
I
Harness for open and short between heat up switch and heat up switch
I
Harness for open and short between heat up switch and body ground
E
Repair open circuit or short to ground or short to power in harness or connectors.
11
CHECK HEAT UP SWITCH INDICATOR
Check continuity between heat up switch terminals 3 and 4.
Refer to Wiring Diagram.
Continuity should exist.
OK or NG
OK
E
GO TO 12.
NG
E
Replace heat up switch.
HEAT UP SWITCH
ZD30DDTi
Diagnostic Procedure (Cont’d)
EC-269
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