Page 1890 of 3502
![NISSAN TEANA 2003 Service Manual EC-608
[VQ]
DTC P1572 ASCD BRAKE SWITCH
4. DETECT MALFUNCTIONING PART
Check the following.
Fuse block (J/B) connector E201
10A fuse
Harness for open or short between ASCD brake switch and fuse
>>](/manual-img/5/57392/w960_57392-1889.png "NISSAN TEANA 2003 Service Manual EC-608
[VQ]
DTC P1572 ASCD BRAKE SWITCH
4. DETECT MALFUNCTIONING PART
Check the following.
Fuse block (J/B) connector E201
10A fuse
Harness for open or short between ASCD brake switch and fuse
>>")
EC-608
[VQ]
DTC P1572 ASCD BRAKE SWITCH
4. DETECT MALFUNCTIONING PART
Check the following.
Fuse block (J/B) connector E201
10A fuse
Harness for open or short between ASCD brake switch and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK ASCD BRAKE 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 108 and ASCD brake switch terminal 2.
Refer to Wiring Diagram.
4. Also check harness for short to ground or short to power.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E206, M13
Harness for open or short between ECM and ASCD brake switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK ASCD BRAKE SWITCH
Refer to EC-610, "
Component Inspection" .
OK or NG
OK >> GO TO 13.
NG >> Replace ASCD brake switch.Continuity should exist.
Page 1891 of 3502
![NISSAN TEANA 2003 Service Manual DTC P1572 ASCD BRAKE SWITCH
EC-609
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8. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Che](/manual-img/5/57392/w960_57392-1890.png "NISSAN TEANA 2003 Service Manual DTC P1572 ASCD BRAKE SWITCH
EC-609
[VQ]
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EC
8. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Che")
DTC P1572 ASCD BRAKE SWITCH
EC-609
[VQ]
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8. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check voltage between stop lamp switch terminal 3 and ground
with CONSULT -II or tester.
OK or NG
OK >> GO TO 10.
NG >> GO TO 9.
9. DETECT MALFUNCTIONING PART
Check the following.
Fuse block (J/B) connector E201
10A fuse
Harness for open or short between stop lamp switch and battery
>> Repair open circuit or short to ground or short to power in harness or connectors.
10. CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 101 and stop lamp switch terminal 4.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 12.
NG >> GO TO 11.
11 . DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E206, M13
Harness for open or short between ECM and stop lamp switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
PBIB2469E
Voltage: Battery voltage
PBIB2102E
Continuity should exist.
Page 1901 of 3502
![NISSAN TEANA 2003 Service Manual DTC P1706 PNP SWITCH
EC-619
[VQ]
C
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EC
3. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors M55, F102
Fuse block (J/B) connector M1
10A fuse
Harness for open](/manual-img/5/57392/w960_57392-1900.png "NISSAN TEANA 2003 Service Manual DTC P1706 PNP SWITCH
EC-619
[VQ]
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3. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors M55, F102
Fuse block (J/B) connector M1
10A fuse
Harness for open")
DTC P1706 PNP SWITCH
EC-619
[VQ]
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3. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors M55, F102
Fuse block (J/B) connector M1
10A fuse
Harness for open or short between PNP switch and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-I
1. Turn ignition switch OFF.
2. Check harness continuity between PNP switch terminal 7 and “unified meter and A/C amp.” terminal 32,
PNP switch terminal 9 and “unified meter and A/C amp.” terminal 33.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors F102, M55
Harness for open or short between PNP switch and “unified meter and A/C amp.”
>> Repair open circuit or short to ground or short to power in harness or connectors.
6. CHECK PNP SWITCH
Refer to AT- 2 3 0 , "
Park/Neutral Position (PNP) Switch" .
OK or NG
OK >> GO TO 7.
NG >> Replace PNP switch.
7. CHECK INTERMITTENT INCIDENT
Refer to EC-450, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
8. CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-II
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 102 and “unified meter and A/C amp.” terminal 25.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 9.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.Continuity should exist.
Continuity should exist.
Page 1911 of 3502
![NISSAN TEANA 2003 Service Manual DTC P1805 BRAKE SWITCH
EC-629
[VQ]
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EC
3. DETECT MALFUNCTIONING PART
Check the following.
10A fuse
Fuse block (J/B) connector E201
Harness for open and short between stop la](/manual-img/5/57392/w960_57392-1910.png "NISSAN TEANA 2003 Service Manual DTC P1805 BRAKE SWITCH
EC-629
[VQ]
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EC
3. DETECT MALFUNCTIONING PART
Check the following.
10A fuse
Fuse block (J/B) connector E201
Harness for open and short between stop la")
DTC P1805 BRAKE SWITCH
EC-629
[VQ]
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3. DETECT MALFUNCTIONING PART
Check the following.
10A fuse
Fuse block (J/B) connector E201
Harness for open and short between stop lamp switch and battery
>> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK STOP LAMP 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 101 and stop lamp switch terminal 4.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E206, M13
Harness for open or short between ECM and stop lamp switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
6. CHECK STOP LAMP SWITCH
Refer to EC-630, "
Component Inspection" .
OK or NG
OK >> GO TO 7.
NG >> Replace stop lamp switch.
7. CHECK INTERMITTENT INCIDENT
Refer to EC-450, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END Continuity should exist.
Page 1946 of 3502
![NISSAN TEANA 2003 Service Manual EC-664
[VQ]
ASCD BRAKE SWITCH
3. CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch harness connector.
3. Turn ignition switch ON.
4. Check vol](/manual-img/5/57392/w960_57392-1945.png "NISSAN TEANA 2003 Service Manual EC-664
[VQ]
ASCD BRAKE SWITCH
3. CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch harness connector.
3. Turn ignition switch ON.
4. Check vol")
EC-664
[VQ]
ASCD BRAKE SWITCH
3. CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch harness connector.
3. Turn ignition switch ON.
4. Check voltage between ASCD brake switch terminal 1 and
ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. DETECT MALFUNCTIONING PART
Check the following.
Fuse block (J/B) connector E201
10A fuse
Harness for open or short between ASCD brake switch and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK ASCD BRAKE 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 108 and ASCD brake switch terminal 2.
Refer to Wiring Diagram.
4. Also check harness for short to ground or short to power.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E206, M13
Harness for open or short between ECM and ASCD brake switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
PBIB2469E
Voltage: Battery voltage
PBIB0857E
Continuity should exist.
Page 1947 of 3502
![NISSAN TEANA 2003 Service Manual ASCD BRAKE SWITCH
EC-665
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7. CHECK ASCD BRAKE SWITCH
Refer to EC-666, "
Component Inspection" .
OK or NG
OK >> GO TO 13.
NG >> Replace ASCD brake switch.
8. CHECK STOP](/manual-img/5/57392/w960_57392-1946.png "NISSAN TEANA 2003 Service Manual ASCD BRAKE SWITCH
EC-665
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7. CHECK ASCD BRAKE SWITCH
Refer to EC-666, \"
Component Inspection\" .
OK or NG
OK >> GO TO 13.
NG >> Replace ASCD brake switch.
8. CHECK STOP")
ASCD BRAKE SWITCH
EC-665
[VQ]
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7. CHECK ASCD BRAKE SWITCH
Refer to EC-666, "
Component Inspection" .
OK or NG
OK >> GO TO 13.
NG >> Replace ASCD brake switch.
8. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check voltage between stop lamp switch terminal 3 and ground
with CONSULT -II or tester.
OK or NG
OK >> GO TO 10.
NG >> GO TO 9.
9. DETECT MALFUNCTIONING PART
Check the following.
Fuse block (J/B) connector E201
10A fuse
Harness for open or short between stop lamp switch and battery
>> Repair open circuit or short to ground or short to power in harness or connectors.
10. CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 101 and stop lamp switch terminal 4.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 12.
NG >> GO TO 11.
PBIB2469E
Voltage: Battery voltage
PBIB2102E
Continuity should exist.
Page 1957 of 3502
![NISSAN TEANA 2003 Service Manual ELECTRONIC CONTROLLED ENGINE MOUNT
EC-675
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4. CHECK ELECTRONIC CONTROLLED ENGINE MOUNT POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front and rear el](/manual-img/5/57392/w960_57392-1956.png "NISSAN TEANA 2003 Service Manual ELECTRONIC CONTROLLED ENGINE MOUNT
EC-675
[VQ]
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4. CHECK ELECTRONIC CONTROLLED ENGINE MOUNT POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front and rear el")
ELECTRONIC CONTROLLED ENGINE MOUNT
EC-675
[VQ]
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4. CHECK ELECTRONIC CONTROLLED ENGINE MOUNT POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front and rear electronic controlled engine mount harness connector.
3. Check voltage between electronic controlled engine mount ter-
minal 3 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors F103, M52
Fuse block (J/B) connector M1
10A fuse
Harness for open and short between electronic controlled engine mount and battery
>> Repair harness or connectors.
6. CHECK ELECTRONIC CONTROLLED ENGINE MOUNT OUTPUT SIGNAL CIRCUIT FOR OPEN AND
SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal and electronic controlled engine mount terminal as fol-
lows. Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
PBIB2184E
Voltage: Battery voltage
SEC920C
ECM terminalFront electronic controlled engine mount
terminalRear electronic controlled engine mount
terminal
811
922
Continuity should exist.
Page 1969 of 3502
![NISSAN TEANA 2003 Service Manual FUEL INJECTOR
EC-687
[VQ]
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EC
3. CHECK FUNCTION OF FUEL INJECTOR-I
Without CONSULT-II
1. Stop engine.
2. Disconnect harness connector F1, F251.
3. Turn ignition switch ON.
4.](/manual-img/5/57392/w960_57392-1968.png "NISSAN TEANA 2003 Service Manual FUEL INJECTOR
EC-687
[VQ]
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3. CHECK FUNCTION OF FUEL INJECTOR-I
Without CONSULT-II
1. Stop engine.
2. Disconnect harness connector F1, F251.
3. Turn ignition switch ON.
4.")
FUEL INJECTOR
EC-687
[VQ]
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3. CHECK FUNCTION OF FUEL INJECTOR-I
Without CONSULT-II
1. Stop engine.
2. Disconnect harness connector F1, F251.
3. Turn ignition switch ON.
4. Check voltage between harness connector F1 terminal 5 and
ground with CONSULT-II or tester.
5. Turn ignition switch OFF.
6. Disconnect ECM harness connector.
7. Check harness continuity between harness connector F1 and
ECM as follows.
Refer to Wiring Diagram.
8. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors M52, F103
Fuse block (J/B) connector M1
10A fuse
Harness for open or short between harness connector F1 and fuse
Harness for open or short between harness connector F251 and fuel injector
>> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK FUNCTION OF FUEL INJECTOR-II
Provide battery voltage between harness connector F251 as follows
and then interrupt it. Listen to each fuel injector operating sound.
OK or NG
OK >> GO TO 6.
NG >> GO TO 7.Voltage: Battery voltage
CylinderHarness connector F1
terminalECM terminal
1623
3222
5121
Continuity should exist.
PBIB2323E
CylinderHarness connector F251 terminal
(+) (–)
156
352
551
Operating sound should exist.PBIB2324E