NISSAN NAVARA 2005 Repair Workshop Manual

DTC P0504 ASCD BRAKE SWITCH
EC-201
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12.CHECK ASCD CLUTCH 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 ASCD clutch 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 13.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
13.CHECK ASCD CLUTCH SWITCH
Refer toEC-202, "
Component Inspection".
OK or NG
OK >> GO TO 14.
NG >> Replace ASCD clutch switch.
14.CHECK INTERMITTENT INCIDENT
Refer toEC-70, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END Continuity should exist.

EC-202
DTC P0504 ASCD BRAKE SWITCH
Component Inspection
EBS01KI0
ASCD BRAKE SWITCH
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch harness connector.
3. Check continuity between ASCD brake switch terminals 1 and 2
under the following conditions.
If NG, adjust ASCD brake switch installation, refer toBR-6,
"BRAKE PEDAL", and perform step 3 again.
ASCD CLUTCH SWITCH
1. Turn ignition switch OFF.
2. Disconnect ASCD clutch switch harness connector.
3. Check continuity between ASCD clutch switch terminals 1 and 2 under the following conditions.
If NG, adjust ASCD clutch switch installation, refer toCL-6,
"CLUTCH PEDAL", and perform step 3 again.
STOP LAMP SWITCH
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check continuity between stop lamp switch terminals 1 and 2 under the following conditions.
If NG, adjust stop lamp switch installation, refer toBR-6, "
BRAKE PEDAL", and perform step 3 again.
Condition Continuity
Brake pedal: Fully released Should exist
Brake pedal: Slightly depressed Should not exist
SEC023D
Condition Continuity
Clutch pedal: Fully released Should exist
Clutch pedal: Slightly depressed Should not exist
SEC024D
Condition Continuity
Brake pedal: Fully released Should not exist
Brake pedal: Slightly depressed Should exist
PBIB2285E

DTC P0563 BATTERY VOLTAGE
EC-203
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DTC P0563 BATTERY VOLTAGEPFP:24410
On Board Diagnosis LogicEBS01KI1
The MI will not light up for this self-diagnosis.
DTC Confirmation ProcedureEBS01KI2
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for at least 35 seconds.
4. If DTC is detected, go toEC-203, "
Diagnostic Procedure".
WITHOUT CONSULT-II
1. Start engine and let it idle for at least 35 seconds.
2. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
3. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
4. If DTC is detected, go toEC-203, "
Diagnostic Procedure".
Diagnostic ProcedureEBS01KI3
1.INSPECTION START
Are jumper cables connected for the jump starting?
Ye s o r N o
Ye s > > G O T O 3 .
No >> GO TO 2.
2.CHECK BATTERY AND ALTERNATOR
Check that the proper type of battery and type of alternator are installed.
Refer to,SC-5, "
BATTERY"andSC-14, "CHARGING SYSTEM".
OK or NG
OK >> GO TO 5.
NG >> Replace with the proper one.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0563
0563Battery voltage highAn excessively high voltage from the battery is
sent to ECM.
lBattery
lBattery terminal
lAlternator
lIncorrect jump starting
SEF817Y

EC-204
DTC P0563 BATTERY VOLTAGE
3.CHECK JUMPER CABLES INSTALLATION
Check that the jumper cables are connected in the correct sequence.
OK or NG
OK >> GO TO 4.
NG >> Reconnect jumper cables properly.
4.CHECK BATTERY FOR BOOSTER
Check that the battery for the booster is a 12V battery.
OK or NG
OK >> GO TO 5.
NG >> Change the vehicle for booster.
5.PERFORM DTC CONFIRMATION PROCEDURE AGAIN
With CONSULT-II
1. Select “SELF DIAG RESULTS” mode with CONSULT-II.
2. Touch “ERASE”.
3. PerformEC-203, "
DTC Confirmation Procedure",again.
4. Is DTC P0563 displayed again?
Without CONSULT-II
1. Erase the Diagnostic Test Mode II (Self-diagnostic results) memory. Refer toEC-27
.
2. PerformEC-203, "
DTC Confirmation Procedure",again.
3. Is DTC 0563 displayed again?
Ye s o r N o
Yes >>GOTO6.
No >> GO TO 7.
6.REPLACE ECM
1. Replace ECM.
2. Perform initialization of NATS system and registration of all NATS ignition key IDs. Refer toBL-172, "
ECM
Re-communicating Function".
3. Perform Fuel Pump Learning Value Clearing. Refer toEC-24, "
Fuel Pump Learning Value Clearing".
4. Perform Injector Adjustment Value Registration. Refer toEC-25, "
Injector Adjustment Value Registration".
>>INSPECTION END
SEF439Z

DTC P0563 BATTERY VOLTAGE
EC-205
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7.CHECK ELECTRICAL PARTS DAMAGE
Check the following for damage.
lWiring harness and harness connectors for burn
lFuses for short
OK or NG
OK >>INSPECTION END
NG >> Repair or replace malfunctioning part.

EC-206
DTC P0580, P0581 ASCD STEERING SWITCH
DTC P0580, P0581 ASCD STEERING SWITCH
PFP:25551
Component DescriptionEBS01KI4
ASCD steering switch has variant values of electrical resistance for each button. ECM reads voltage variation
of switch, and determines which button is operated.
Refer toEC-355, "
AUTOMATIC SPEED CONTROL DEVICE (ASCD)"for the ASCD function.
CONSULT-II Reference Value in Data Monitor ModeEBS01KI5
Specification data are reference values.
ECM Terminals and Reference ValueEBS01KI6
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
PBIB2645E
MONITOR ITEM CONDITION SPECIFICATION
MAIN SW
lIgnition switch: ONMAIN switch: Pressed ON
MAIN switch: Released OFF
CANCEL SW
lIgnition switch: ONCANCEL switch: Pressed ON
CANCEL switch: Released OFF
RESUME/ACC SW
lIgnition switch: ONRESUME/ACCELERATE switch:
PressedON
RESUME/ACCELERATE switch:
ReleasedOFF
SET SW
lIgnition switch: ONSET/COAST switch: Pressed ON
SET/COAST switch: Released OFF
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage)
102 SB ASCD steering switch[Ignition switch ON]
lASCD steering switch: OFFApproximately 4.3V
[Ignition switch ON]
lMAIN switch: PressedApproximately 0.3V
[Ignition switch ON]
lCANCEL switch: PressedApproximately 1.3V
[Ignition switch ON]
lRESUME/ACCELERATE switch: PressedApproximately 3.3V
[Ignition switch ON]
lSET/COAST switch: PressedApproximately 2.3V
103 BASCD steering switch
ground[Ignition switch ON]Approximately 0.3V

DTC P0580, P0581 ASCD STEERING SWITCH
EC-207
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On Board Diagnosis LogicEBS01KI7
The MI will not light up for these diagnoses.
NOTE:
If DTC P0580 or P0581 is displayed with DTC P0606, first perform the trouble diagnosis for DTC P0606.
Refer toEC-215, "
DTC P0606 ECM".
DTC Confirmation ProcedureEBS01KI8
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Wait at least 10 seconds.
4. Press MAIN switch for at least 10 seconds, then release it and wait at least 10 seconds.
5. Press RESUME/ACCELERATE switch for at least 10 seconds, then release it and wait at least 10 sec-
onds.
6. Press SET/COAST switch for at least 10 seconds, then release it and wait at least 10 seconds.
7. Press CANCEL switch for at least 10 seconds, then release it and wait at least 10 seconds.
8. If DTC is detected, go toEC-209, "
Diagnostic Procedure".
WITHOUT CONSULT-II
1. Turn ignition switch ON and wait at least 10 seconds.
2. Press MAIN switch for at least 10 seconds, then release it and wait at least 10 seconds.
3. Press RESUME/ACCELERATE switch for at least 10 seconds, then release it and wait at least 10 sec-
onds.
4. Press SET/COAST switch for at least 10 seconds, then release it and wait at least 10 seconds.
5. Press CANCEL switch for at least 10 seconds, then release it and wait at least 10 seconds.
6. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
7. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
8. If DTC is detected, go toEC-209, "
Diagnostic Procedure".
DTC No.Trouble Diagnosis
NameDTC Detecting Condition Possible Cause
P0580
0580ASCD steering switch
circuit low input
lECM detects that the ASCD steering switch is
stuck ON.lHarness or connectors
(The switch circuit is open or shorted.)
lASCD steering switch
lECM P0581
0581ASCD steering switch
circuit high input
lAn excessively high voltage signal from the
ASCD steering switch is sent to ECM.

EC-208
DTC P0580, P0581 ASCD STEERING SWITCH
Wiring Diagram
EBS01KI9
MBWA1049E

DTC P0580, P0581 ASCD STEERING SWITCH
EC-209
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Diagnostic ProcedureEBS01KIA
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body.
Refer toEC-78, "
Ground Inspection".
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
: Vehicle front
1. Body ground E21 2. ECM 3. Body ground E41
4. A/C high-pressure service valve 5. ABS actuator and electric unit
(control unit)6. Body ground E61
MBIB1218E

EC-210
DTC P0580, P0581 ASCD STEERING SWITCH
2.CHECK ASCD STEERING SWITCH CIRCUIT
With CONSULT-II
1. Turn ignition switch ON.
2. Select “MAIN SW”, “RESUME/ACC SW”, “SET SW” and “CANCEL SW” in “DATA MONITOR” mode with
CONSULT-II.
3. Check each item indication under the following conditions.
Without CONSULT-II
1. Turn ignition switch ON.
2. Check voltage between ECM terminal 102 and ground with
pressing each button.
OK or NG
OK >> GO TO 8.
NG >> GO TO 3.
3.CHECK ASCD STEERING SWITCH GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect combination switch harness connector.
3. Disconnect ECM harness connector.
4. Check harness continuity between combination switch terminal 17 and ECM terminal 103. Refer to Wiring
Diagram.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
Switch Monitor item Condition Indication
MAIN switch MAIN SWPressed ON
Released OFF
CANCEL switch CANCEL SWPressed ON
Released OFF
RESUME/ACCELERATE
switchRESUME/ACC SWPressed ON
Released OFF
SET/COAST switch SET SWPressed ON
Released OFF
SEC006D
Switch Condition Voltage [V]
MAIN switchPressed Approx. 0
Released Approx. 4.3
CANCEL switchPressed Approx. 1.3
Released Approx. 4.3
RESUME/ACCELERATE
switchPressed Approx. 3.3
Released Approx. 4.3
SET/COAST switchPressed Approx. 2.3
Released Approx. 4.3
MBIB0043E
Continuity should exist.