brake light NISSAN TIIDA 2007 Service Owner's Guide

ECM
EC-337
< ECU DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
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P O93 Ground W/L Ignition switch Input[Ignition switch: OFF] 0V
[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
94 Ground V ASCD steering switch Input[Ignition switch: ON]
 ASCD steering switch: OFF4V
[Ignition switch: ON]
 CANCEL switch: Pressed1V
[Ignition switch: ON]
 MAIN switch: Pressed0V
[Ignition switch: ON]
 RESUME/ACCELERATE
switch: Pressed3V
[Ignition switch: ON]
 SET/COAST switch:
Pressed2V
95 Ground BSensor ground
(ASCD steering switch)—[Engine is running]
 Warm-up condition
 Idle speed0V
99 Ground R/W Stop lamp switch Input[Ignition switch: OFF]
 Brake pedal: Fully released0V
[Ignition switch: OFF]
 Brake pedal: Slightly de-
pressedBATTERY VOLTAGE
(11 - 14V)
100 Ground R ASCD brake switch Input[Ignition switch: ON]
 Brake pedal: Slightly de-
pressed (A/T)
 Brake pedal and clutch ped-
al: Slightly depressed (M/T)0V
[Ignition switch: ON]
 Brake pedal: Fully released
(A/T)
 Brake pedal and/or clutch
pedal: Fully released (M/T)BATTERY VOLTAGE
(11 - 14V)
102 Ground BRSensor power supply
(Accelerator pedal position
sensor 2)— [Ignition switch: ON] 5V
103 Ground GRAccelerator pedal position
sensor 2Input[Ignition switch: ON]
 Engine stopped
 Accelerator pedal: Fully re-
leased0.3 - 0.6V
[Ignition switch: ON]
 Engine stopped
 Accelerator pedal: Fully de-
pressed1.95 - 2.4V
104 Ground YSensor ground
(Accelerator pedal position
sensor 2)—[Engine is running]
 Warm-up condition
 Idle speed0V
105 Ground G Power supply for ECM Input [Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
106 Ground VSensor power supply
(Accelerator pedal position
sensor 1)— [Ignition switch: ON] 5V
108 Ground B ECM ground —[Engine is running]
 Idle speedBody ground Terminal No.
Wire
colorDescription
ConditionVa l u e
(Approx.)
+ -– Signal nameInput/
Output

AUTOMATIC SPEED CONTROL DEVICE (ASCD)
EC-425
< FUNCTION DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
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When any of following conditions exist, cruise operation will be canceled.
 CANCEL switch is pressed
 More than 2 switches at ASCD steering switch are pressed at the same time (Set speed will be cleared)
 Brake pedal is depressed
 Clutch pedal is depressed or gear position is changed to neutral position (M/T models).
 Selector lever is changed to N, P, R position (A/T models).
 Vehicle speed decreased to 13 km/h (8 MPH) lower than the set speed
 TCS system is operated
When the ECM detects any of the following conditions, the ECM will cancel the cruise operation and inform
the driver by blinking indicator lamp.
 Engine coolant temperature is slightly higher than the normal operating temperature, CRUISE lamp may
blink slowly.
When the engine coolant temperature decreases to the normal operating temperature, CRUISE lamp will
stop blinking and the cruise operation will be able to work by pressing SET/COAST switch or RESUME/
ACCELERATE switch.
 Malfunction for some self-diagnoses regarding ASCD control: SET lamp will blink quickly.
If MAIN switch is turned to OFF during ASCD is activated, all of ASCD operations will be canceled and vehicle
speed memory will be erased.
COAST OPERATION
When the SET/COAST switch is pressed during cruise control driving, decrease vehicle set speed until the
switch is released. And then ASCD will keep the new set speed.
RESUME OPERATION
When the RESUME/ACCELERATE switch is pressed after cancel operation other than pressing MAIN switch
is performed, vehicle speed will return to last set speed. To resume vehicle set speed, vehicle condition must
meet following conditions.
 Brake pedal is released
 Clutch pedal is released (M/T models)
 Selector lever is in other than P and N positions (A/T models)
 Vehicle speed is greater than 40 km/h (25 MPH) and less than 153km/h (95 MPH)

EC-466
< FUNCTION DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
DIAGNOSIS SYSTEM (ECM)
AIR COND SIG ON/OFF Indicates [ON/OFF] condition of the air condition-
er switch as determined by the air conditioner sig-
nal.
P/N POSI SW ON/OFF Indicates [ON/OFF] condition from the park/neu-
tral position (PNP) switch signal.
PW/ST SIGNAL ON/OFF [ON/OFF] condition of the power steering system
(determined by the signal sent from EPS control
unit) is indicated.
LOAD SIGNAL ON/OFF Indicates [ON/OFF] condition from the electrical
load signal.
ON: Rear window defogger switch is ON and/or
lighting switch is in 2nd position.
OFF: Both rear window defogger switch and light-
ing switch are OFF.
IGNITION SW ON/OFF Indicates [ON/OFF] condition from ignition switch
signal.
CLUTCH P/P SW ON/OFF Indicates [ON/OFF] condition from the clutch
switch signal.
HEATER FAN SW ON/OFF Indicates [ON/OFF] condition from the heater fan
switch signal.
BRAKE SW ON/OFF Indicates [ON/OFF] condition from the stop lamp
switch signal.
INJ PULSE-B1 msec Indicates the actual fuel injection pulse width
compensated by ECM according to the input sig-
nals. When the engine is stopped, a certain
computed value is indicated.
IGN TIMING BTDC Indicates the ignition timing computed by ECM
according to the input signals. When the engine is stopped, a certain
value is indicated.
PURG VOL C/V % Indicates the EVAP canister purge volume con-
trol solenoid valve control value computed by the
ECM according to the input signals.
 The opening becomes larger as the value in-
creases.
INT/V TIM (B1)°CA Indicates [°CA] of intake camshaft advance an-
gle.
INT/V SOL-B1
% The control value of the intake valve timing con-
trol solenoid valve (determined by ECM accord-
ing to the input signals) is indicated.
 The advance angle becomes larger as the value
increases.
AIR COND RLY ON/OFF The air conditioner relay control condition (deter-
mined by ECM according to the input signals) is
indicated.
FUEL PUMP RLY ON/OFF Indicates the fuel pump relay control condition
determined by ECM according to the input sig-
nals.
THRTL RELAY ON/OFF Indicates the throttle control motor relay control
condition determined by the ECM according to
the input signals.
COOLING FAN HI/LOW/OFF Indicates the condition of the cooling fan (deter-
mined by ECM according to the input signals).
HI: High speed operation
LOW: Low speed operation
OFF: Stop
HO2S1 HTR (B1) ON/OFF Indicates [ON/OFF] condition of heated oxygen
sensor 1 heater determined by ECM according to
the input signals. Monitored item Unit Description Remarks

P1572 ASCD BRAKE SWITCH
EC-557
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
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Always drive vehicle at a safe speed.
NOTE:
This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle.
If a road test is expected to be easier, it is unnecessary to lift the vehicle.
5. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-558, "Diagnosis Procedure".
NO >> GO TO 4.
4.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A-II
With CONSULT-III
1. Drive the vehicle for at least 5 consecutive seconds under the following conditions.
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle.
If a road test is expected to be easier, it is unnecessary to lift the vehicle.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-558, "Diagnosis Procedure".
NO >> INSPECTION END
5.PERFORM COMPONENT FUNCTION CHECK
Perform component check. Refer to
Use component function check to check the overall function of the ASCD brake circuit. During this check, a 1st
trip DTC might not be confirmed.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-558, "
Diagnosis Procedure".
Component Function CheckINFOID:0000000001705131
1.PERFORM COMPONENT FUNCTION CHECK-I
Without CONSSULT-III
1. Turn ignition switch ON.
2. Check voltage between ECM harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
VHCL SPEED SE More than 30 km/h (19 mph)
Shift lever Suitable position
VHCL SPEED SE More than 30 km/h (19 mph)
Selector lever Suitable position
Driving locationDepress the brake pedal for more than
five seconds so as not to come off from
the above-mentioned vehicle speed.
(+) (−)
Condition Voltage
Connector Terminal Connector Terminal
E16100
(ASCD brake switch signal)E16 108Brake pedal and/or
clutch pedalSlightly depressed Approx. 0V
Brake pedal and
clutch pedalFully released Battery voltage

EC-558
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
P1572 ASCD BRAKE SWITCH
NO >> Go to EC-558, "Diagnosis Procedure".
2.PERFORM COMPONENT FUNCTION CHECK-II
Without CONSSULT-III
Check voltage between ECM harness connector and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-558, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001700236
1.CHECK OVERALL FUNCTION-I
With CONSULT-III
1. Turn ignition switch ON.
2. Select “BRAKE SW1” in “DATA MONITOR” mode with CONSULT-III.
3. Check “BRAKE SW1” indication under the following conditions.
Without CONSULT-III
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector terminal as follows.
Is the inspection result normal?
YES >> GO TO 2.
NO-1 >> A/T models: GO TO 3.
NO-1 >> M/T models: GO TO 8.
2.CHECK OVERALL FUNCTION-II
With CONSULT-III
Select “BRAKE SW2” and check indication in “DATA MONITOR” mode.
Without CONSULT-III
Check the voltage between ECM harness connector terminal as follows.
ECM
Ground Condition Voltage
Connector Terminal
E1699
(Stop lamp switch signal)Ground Brake pedal and clutch pedal Slightly depressed Approx. 0V
Fully released Battery voltage
Monitor item Condition Indication
BRAKE SW1Brake pedal and/or clutch pedal Slightly depressed OFF
Brake pedal and clutch pedal Fully released ON
(+) (−)
Condition Voltage
Connector Terminal Connector Terminal
E16100
(ASCD brake switch signal)E16 108Brake pedal and/or
clutch pedalSlightly depressed Approx. 0V
Brake pedal and
clutch pedalFully released Battery voltage
Monitor item Condition Indication
BRAKE SW2 Brake pedalSlightly depressed ON
Fully released OFF

P1572 ASCD BRAKE SWITCH
EC-559
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
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Is the inspection result normal?
YES >> GO TO 21.
NO >> GO TO 16.
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 the voltage between ASCD brake switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 5.
NO >> GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the following.
 Harness connectors E7, M69 (LHD models)
 Harness connectors M25, M201 (RHD models)
 10A fuse (No.2)
 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 ASCD harness connector.
3. Check the continuity between ASCD brake switch harness connector and ECM harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 7.
NO >> GO TO 6.
6.DETECT MALFUNCTIONING PART
Check the following.
 Junction block connector M25, M201, M69, E7 (RHD models)
 Harness for open or short between ASCD brake switch and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
7.CHECK ASCD BRAKE SWITCH
(+) (−)
Condition Voltage
Connector Terminal Connector Terminal
E1699
(Stop lamp switch signal)E108 108 Brake pedalSlightly depressed Battery voltage
Fully released Approx. 0V
ASCD brake switch
Ground Voltage
Connector Terminal
E36 (LHD models)
M205 (RHD models)1 Ground Battery voltage
ASCD brake switch ECM
Continuity
Connector Terminal Connector Terminal
E36 (LHD models)
M205 (RHD models)2 E16 100 Existed

EC-560
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
P1572 ASCD BRAKE SWITCH
Refer to EC-562, "Component Inspection (ASCD Brake Switch)".
Is the inspection result normal?
YES >> GO TO 21.
NO >> Replace ASCD brake switch.
8.CHECK ASCD BRAKE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ASCD clutch switch harness connector.
3. Turn ignition switch ON.
4. Check the voltage between ASCD clutch switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 13.
NO >> GO TO 9.
9.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 the voltage between ASCD brake switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 11.
NO >> GO TO 10.
10.DETECT MALFUNCTIONING PART
Check the following.
 Junction block connector E7, M69 (LHD models)
 Junction block connector M25, M201 (RHD models)
 10A fuse (No.2)
 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.
11 .CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check the continuity between ASCD brake switch harness connector and ASCD clutch switch harness
connector.
3. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 12.
ASCD Clutch switch
Ground Condition Voltage (V)
Connector Terminal
E35 (LHD models)
M206 (RHD models)1 Ground Brake pedalSlightly depressed Approx. 0
Fully released Battery voltage
ASCD brake switch
Ground Voltage
Connector Terminal
E36 (LHD models)
M205 (RHD models)1 Ground Battery voltage
ASCD brake switch ASCD clutch switch
Continuity
Connector Terminal Connector Terminal
E36 (LHD models)
M205 (RHD models)2E35 (LHD models)
M206 (RHD models)1 Existed

EC-562
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
P1572 ASCD BRAKE SWITCH
18.CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check the continuity between ECM harness connector and stop lamp switch harness connector.
3. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 20.
NG >> GO TO 19.
19.DETECT MALFUNCTIONING PART
Check the following.
 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.
20.CHECK STOP LAMP SWITCH
Refer to EC-563, "
Component Inspection (Stop Lamp Switch)".
Is the inspection result normal?
YES >> GO TO 21.
NO >> Replace stop lamp switch.
21.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
>> INSPECTION END
Component Inspection (ASCD Brake Switch)INFOID:0000000001693382
1.CHECK ASCD BRAKE SWITCH-I
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch harness connector.
3. Check the continuity between ASCD brake switch terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK ASCD BRAKE SWITCH-II
1. Adjust ASCD brake switch installation. Refer to BR-6, "
Inspection and Adjustment".
2. Check the continuity between ASCD brake switch terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
ECM Stop lamp switch
Continuity
Connector Terminal Connector Terminal
E16 99E13 (LHD models)
M203 (RHD models)2 Existed
Terminals Condition Continuity
1 and 2 Brake pedalFully released Existed
Slightly depressed Not existed
Terminals Condition Continuity
1 and 2 Brake pedalFully released Existed
Slightly depressed Not existed

P1572 ASCD BRAKE SWITCH
EC-563
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
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NO >> Replace ASCD brake switch.
Component Inspection (ASCD Clutch Switch)INFOID:0000000001693383
1.CHECK ASCD CLUTCH SWITCH-I
1. Turn ignition switch OFF.
2. Disconnect ASCD clutch switch harness connector.
3. Check the continuity between ASCD clutch switch terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK ASCD CLUTCH SWITCH-II
1. Adjust ASCD clutch switch installation. Refer to CL-5, "
On-vehicle Inspection and Adjustment".
2. Check the continuity between ASCD clutch switch terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace ASCD clutch switch.
Component Inspection (Stop Lamp Switch)INFOID:0000000001693384
1.CHECK STOP LAMP SWITCH-I
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check the continuity between stop lamp switch terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK STOP LAMP SWITCH-II
1. Adjust stop lamp switch installation. Refer to BR-6, "
Inspection and Adjustment".
2. Check the continuity between stop lamp switch terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace stop lamp switch.
Terminals Condition Continuity
1 and 2 Clutch pedalFully released Existed
Slightly depressed Not existed
Terminals Condition Continuity
1 and 2 Clutch pedalFully released Existed
Slightly depressed Not existed
Terminals Condition Continuity
1 and 2 Brake pedalFully released Not existed
Slightly depressed Existed
Terminals Condition Continuity
1 and 2 Brake pedalFully released Not existed
Slightly depressed Existed

P1805 BRAKE SWITCH
EC-569
< COMPONENT DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
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P1805 BRAKE SWITCH
DescriptionINFOID:0000000001693392
Brake switch signal is applied to the ECM through the stop lamp switch when the brake pedal is depressed.
This signal is used mainly to decrease the engine speed when the vehicle is driving.
DTC LogicINFOID:0000000001693393
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Fully depress the brake pedal for at least 5 seconds.
3. Erase the DTC with CONSULT-III.
4. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-569, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001693394
1.CHECK STOP LAMP SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Check the stop lamp when depressing and releasing the brake pedal.
Is the inspection result normal?
YES >> GO TO 4
NO >> GO TO 2
2.CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check the voltage between stop lamp switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1805 Brake switchA brake switch signal is not sent to ECM for ex-
tremely long time while the vehicle is driving. Harness or connectors
(Stop lamp switch circuit is open or short-
ed.)
 Stop lamp switch
Brake pedal Stop lamp
Fully released Not illuminated
Slightly depressed Illuminated
Stop lamp switch
Ground Voltage
Connector Terminal
E13 (LHD models)
M203 (RHD models)1 Ground Battery voltage