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![INFINITI M35 2007 Factory Service Manual EC-1304
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DTC P1800 VIAS CONTROL SOLENOID VALVE
Revision: 2007 April2007 M35/M45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use E INFINITI M35 2007 Factory Service Manual EC-1304
[VK45DE]
DTC P1800 VIAS CONTROL SOLENOID VALVE
Revision: 2007 April2007 M35/M45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use E](/manual-img/42/57024/w960_57024-2832.png)
EC-1304
[VK45DE]
DTC P1800 VIAS CONTROL SOLENOID VALVE
Revision: 2007 April2007 M35/M45
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.
Diagnostic ProcedureNBS005NJ
1. CHECK VIAS CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect VIAS control solenoid (1) valve harness connector.
–: Vehicle front
3. Turn ignition switch ON.
4. Check voltage between terminal 1 and ground with CONSULT-II
or tester.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
29 V VIAS control solenoid valve[Engine is running]
Selector lever: P or N0 - 1.0V
[Engine is running]
Selector lever: D
Engine speed: Below 5,000 rpmBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Engine speed: Above 5,000 rpm0 - 1.0V
111 S BECM relay
(Self shut-off)[Engine is running]
[Ignition switch: OFF]
For a few seconds after turning ignition
switch OFF0 - 1.5V
[Ignition switch: OFF]
More than a few seconds after turning igni-
tion switch OFFBATTERY VOLTAGE
(11 - 14V)
11 9
120R
RPower supply for ECM[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
PBIB2694E
Voltage: Battery voltage
PBIB0173E
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![INFINITI M35 2007 Factory Service Manual DTC P1800 VIAS CONTROL SOLENOID VALVE
EC-1305
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2. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E12, F3
Harnes INFINITI M35 2007 Factory Service Manual DTC P1800 VIAS CONTROL SOLENOID VALVE
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2. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E12, F3
Harnes](/manual-img/42/57024/w960_57024-2833.png)
DTC P1800 VIAS CONTROL SOLENOID VALVE
EC-1305
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2. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E12, F3
Harness for open or short between VIAS control solenoid valve and IPDM E/R
>> Repair harness or connectors.
3. CHECK VIAS CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 29 and VIAS control solenoid valve terminal 2.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK VIAS CONTROL SOLENOID VALVE
Refer to EC-1305, "
Component Inspection" .
OK or NG
OK >> GO TO 5.
NG >> Replace VIAS control solenoid valve.
5. CHECK INTERMITTENT INCIDENT
Refer to EC-857, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionNBS005NK
VIAS CONTROL SOLENOID VALVE
With CONSULT-II
1. Reconnect harness connectors disconnected.
2. Turn ignition switch ON.
3. Perform “VIAS SOL VALVE” in “ACTIVE TEST” mode.
4. Check air passage continuity and operation delay time under the
following conditions.
Operation takes less than 1 second.Continuity should exist.
Condition
VIAS SOL VALVEAir passage continuity
between (A) and (B)Air passage continuity
between (A) and (C)
ON Yes No
OFF No Yes
PBIB0177E
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EC-1306
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DTC P1800 VIAS CONTROL SOLENOID VALVE
Revision: 2007 April2007 M35/M45
Without CONSULT-II
Check air passage continuity and operation delay time under the fol-
lowing conditions.
Operation takes less than 1 second.
Removal and InstallationNBS005NL
VIAS CONTROL SOLENOID VALVE
Refer to EM-179, "INTAKE MANIFOLD" .
ConditionAir passage continuity
between (A) and (B)Air passage continuity
between (A) and (C)
12V direct current supply
between terminals 1 and 2Ye s N o
No supply No Yes
SEF313Q
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![INFINITI M35 2007 Factory Service Manual DTC P1805 BRAKE SWITCH
EC-1307
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DTC P1805 BRAKE SWITCHPFP:25320
Component DescriptionNBS005NM
Brake switch signal is applied to the E INFINITI M35 2007 Factory Service Manual DTC P1805 BRAKE SWITCH
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DTC P1805 BRAKE SWITCHPFP:25320
Component DescriptionNBS005NM
Brake switch signal is applied to the E](/manual-img/42/57024/w960_57024-2835.png)
DTC P1805 BRAKE SWITCH
EC-1307
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DTC P1805 BRAKE SWITCHPFP:25320
Component DescriptionNBS005NM
Brake switch signal is applied to the ECM through the stop lamp
switch (1) when the brake pedal is depressed. This signal is used
mainly to decrease the engine speed when the vehicle is driving.
ICC brake switch (models with ICC) (2)
ASCD brake switch (models with ASCD) (2)
CONSULT-II Reference Value in Data Monitor ModeNBS005NN
Specification data are reference values.
On Board Diagnosis LogicNBS005NO
The MIL will not light up for this diagnosis.
FAIL-SAFE MODE
When the malfunction is detected, ECM enters fail-safe mode.
PBIB2705E
MONITOR ITEM CONDITION SPECIFICATION
BRAKE SW
Ignition switch: ONBrake pedal: Fully released OFF
Brake pedal: Slightly depressed ON
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1805
1805Brake switchA brake switch signal is not sent to ECM for
extremely long time while the vehicle is driving.
Harness or connectors
(Stop lamp switch circuit is open or
shorted.)
Stop lamp switch
Engine operating condition in fail-safe mode
ECM controls the electric throttle control actuator by regulating the throttle opening to a small range.
Therefore, acceleration will be poor.
Vehicle condition Driving condition
When engine is idling Normal
When accelerating Poor acceleration
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EC-1308
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DTC P1805 BRAKE SWITCH
Revision: 2007 April2007 M35/M45
DTC Confirmation ProcedureNBS005NP
WITH CONSULT-II
1. Turn ignition switch ON.
2. Fully depress the brake pedal for at least 5 seconds.
3. Erase the DTC with CONSULT-II.
4. Select “DATA MONITOR” mode with CONSULT-II.
5. If 1st trip DTC is detected, go to EC-1310, "
Diagnostic Proce-
dure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
SEF058Y
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DTC P1805 BRAKE SWITCH
EC-1309
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Revision: 2007 April2007 M35/M45
Wiring DiagramNBS005NQ
TBWT1054E
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![INFINITI M35 2007 Factory Service Manual EC-1310
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DTC P1805 BRAKE SWITCH
Revision: 2007 April2007 M35/M45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground termi INFINITI M35 2007 Factory Service Manual EC-1310
[VK45DE]
DTC P1805 BRAKE SWITCH
Revision: 2007 April2007 M35/M45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground termi](/manual-img/42/57024/w960_57024-2838.png)
EC-1310
[VK45DE]
DTC P1805 BRAKE SWITCH
Revision: 2007 April2007 M35/M45
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.
Diagnostic ProcedureNBS005NR
ICC MODELS
1. CHECK DTC WITH ICC SENSOR INTEGRATED UNIT
Refer to ACS-40, "
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace.
2. CHECK STOP LAMP SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Check the stop lamp when depressing and releasing the brake pedal.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
101 V/R Stop lamp switch[Ignition switch: OFF]
Brake pedal: Fully releasedApproximately 0V
[Ignition switch: OFF]
Brake pedal: Slightly depressedBATTERY VOLTAGE
(11 - 14V)
Brake pedal Stop lamp
Fully released Not illuminated
Slightly depressed Illuminated
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DTC P1805 BRAKE SWITCH
EC-1311
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Revision: 2007 April2007 M35/M45
3. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Disconnect stop lamp switch (1) harness connector.
–ICC brake switch (2)
2. Disconnect ICC brake hold relay (1) harness connector.
–: Vehicle front
3. Check voltage between stop lamp switch terminal 1 and ground
with CONSULT -II or tester.
4. Check voltage between ICC brake hold relay terminal 3 and
ground with CONSULT -II or tester.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
PBIB2705E
PBIB2699E
Voltage: Battery voltage
PBIA9488J
Voltage: Battery voltage
PBIB2740E