2007 NISSAN TIIDA light

P0571 ASCD BRAKE SWITCH
EC-1171
< COMPONENT DIAGNOSIS >[K9K]
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P0571 ASCD BRAKE SWITCH
DTC LogicINFOID:0000000001162639
DTC DETECTION LOGIC
NOTE:
Conditions for applying the diagnostic procedure to the stored DTCs:
The DTC is declared present after a series of actions on the brake pedal.
Diagnosis ProcedureINFOID:0000000001162640
1.CHECK ASCD BRAKE SWITCH CIRCUIT
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector and ground.
Is the inspection result normal?
YES >> GO TO 7.
NO >> GO TO 2.
2.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 4.
NO >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
 Harness connectors M69, E7 (LHD models)
 Harness connectors M25, M201 (RHD models)
 10A fuse (No. 2)
 Harness for open or short between fuse and ASCD brake switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT
DTC No. Trouble diagnosis name Possible cause
P0571ASCD BRAKE SWITCH CIRCUIT
 1.DEF: Values outside the levels
 2.DEF: Signal incoherence
 3.DEF: Signal outside upper level Harness or connectors
(ASCD brake switch circuit is open or shorted)
(The CAN communication line is open or short-
ed)
 ASCD brake switch
BCM
+–
Condition Voltage
Connector Terminal Connector Terminal
E1611 6
(ASCD brake switch)E16 128 Brake pedalFully released Battery voltage
Slightly depressed 0V
ASCD brake switch
Ground Voltage
Connector Terminal
E36 (LHD models)
M205 (RHD models)1 Ground Battery voltage

EC-1172
< COMPONENT DIAGNOSIS >[K9K]
P0571 ASCD BRAKE SWITCH
1. Turn ignition switch OFF.
2. Disconnect ECM 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 6.
NO >> GO TO 5.
5.DETECT MALFUNCTIONING PART
Check the following
 Harness connectors M25, M201
 Harness connectors M69, E7
 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.
6.CHECK ASCD BRAKE SWITCH
Refer to EC-1172, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 7.
NO >> Replace ASCD brake switch.
7.CHECK BCM
Refer to BCS-17, "
BCM : CONSULT-III Function (BCM - BCM)"–.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair or replace
8.CHECK CAN COMMUNICATION LINE
Refer to LAN-33, "
CAN Communication Signal Chart"–.
Is the inspection result normal?
YES >> GO TO 9.
NO >> Repair or replace
9.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000001162641
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?
ASCD brake switch ECM
Continuity
Connector Terminal Connector Terminal
E36 (LHD models)
M205 (RHD models)2 E16 116 Existed
Terminals Condition Continuity
1 and 2
(ASCD brake switch)Brake pedalFully released Existed
Slightly depressed Not existed

P0571 ASCD BRAKE SWITCH
EC-1173
< COMPONENT DIAGNOSIS >[K9K]
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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
NO >> Replace ASCD brake switch.
Terminals Condition Continuity
1 and 2
(ASCD brake switch)Brake pedalFully released Existed
Slightly depressed Not existed

EC-1178
< COMPONENT DIAGNOSIS >[K9K]
P0606 ECM
P0606 ECM
DescriptionINFOID:0000000001162646
The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The ECM controls the engine.
DTC LogicINFOID:0000000001162647
DTC DETECTION LOGIC
NOTE:
If DTC P0606 is displayed with other DTC, first perform the trouble diagnosis for other DTC.
Conditions for applying the diagnostic procedure to the stored DTCs:
The DTC is declared present after an attempted start, or with the engine running.
If the DTC is present:
-Malfunction indicator (Red) lights up.
-Malfunction indicator (Yellow) lights up.
Diagnosis ProcedureINFOID:0000000001162648
1.CHECK DTC
Make sure that which malfunction (DTC second line indication) is displayed.
A or B
A>>GO TO 2.
B>>GO TO 3.
2.REPLACE ECM
1. Perform EC-1054, "
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair
Requirement".
2. Perform EC-1055, "
EGR VOLUME CONTROL VALVE CLOSED POSITION LEARNING : Special Repair
Requirement".
>>INSPECTION END
3.CHECK CAN COMMUNICATION LINE
Refer to LAN-33, "
CAN Communication Signal Chart".
OK or NG
OK >> GO TO 4.
NG >> Repair or replace.
4.CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
MBIB1517E
DTC No. Trouble diagnosis name Possible cause
P0606ECM
 1.DEF to 20.DEF: Internal electric malfunctionECM
AExcept 9.DEFF
B9.DEF

EC-1180
< COMPONENT DIAGNOSIS >[K9K]
P0641 SENSOR POWER SUPPLY
P0641 SENSOR POWER SUPPLY
DTC LogicINFOID:0000000001162649
DTC DETECTION LOGIC
NOTE:
If DTC P0641 is displayed with DTC P0100, P0101, P0110, P0190, P0225, P0409, P0530, P2120, first
perform trouble diagnosis for DTC P0641.
-Conditions for applying the diagnostic procedure to the stored DTCs:
The DTC is declared present after the ignition has been switched on.
-If the DTC is present:
-Malfunction indicator (Red) lights up.
Diagnosis ProcedureINFOID:0000000001162650
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E15. Refer to Ground Inspection in GI-58, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK ACCELERATOR PEDAL POSITION SENSOR 2 POWER SUPPLY CIRCUIT
1. Disconnect accelerator pedal position (APP) sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between APP sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.CHECK SENSOR POWER SUPPLY CIRCUITS
Check harness for short to power and short to ground, between the following terminals.
DTC No. Trouble diagnosis name Possible cause
P0641SENSOR POWER SUPPLY CIRCUIT
 1.DEF: Signal outside lower level
 2.DEF: Signal outside upper level Harness or connectors
(The APP sensor 2 power supply circuit is shorted.)
(Fuel rail pressure sensor circuit is shorted.)
(EGR volume control valve control position sensor circuit
is shorted.)
(Mass air flow sensor circuit is shorted.)
(Refrigerant pressure sensor circuit is shorted.)
 Accelerator pedal position sensor
(APP sensor 2)
 Fuel rail pressure sensor
 EGR volume control valve control position sensor
 Mass air flow sensor
 Refrigerant pressure sensor
APP sensor
Ground Voltage
Connector Terminal
E12 (LHD models)
M204 (RHD models)5 Ground Approx. 5V

EC-1182
< COMPONENT DIAGNOSIS >[K9K]
P0651 SENSOR POWER SUPPLY
P0651 SENSOR POWER SUPPLY
DTC LogicINFOID:0000000001162651
DTC DETECTION LOGIC
NOTE:
If DTC P0651 is displayed with DTC P0225, P0235, first perform trouble diagnosis for DTC P0651.
Conditions for applying the diagnostic procedure to the stored DTCs:
The DTC is declared present after the ignition has been switched on.
If the DTC is present:
Malfunction indicator (Red) lights up.
Diagnosis ProcedureINFOID:0000000001162652
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E15. Refer to Ground Inspection in GI-58, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK ACCELERATOR PEDAL POSITION SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect accelerator pedal position (APP) sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between APP sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.CHECK SENSOR POWER SUPPLY CIRCUITS
Check harness for short to power and short to ground, between the following terminals.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair short to ground or short to power in harness or connectors.
4.CHECK SENSOR GROUND CIRCUITS
DTC No. Trouble diagnosis name Possible cause
P0651SENSOR POWER SUPPLY CIRCUIT
 1.DEF: Parameter at minimum level
 2.DEF: Parameter at maximum level Harness or connectors
(The APP sensor 1 power supply circuit is shorted.)
(Turbocharger boost sensor circuit is shorted.)
 Accelerator pedal position sensor
(APP sensor 1)
 Turbocharger boost sensor
APP sensor
Ground Voltage
Connector Terminal
E12 (LHD models)
M204 (RHD models)4 Ground Approx. 5V
ECM Sensor
Connector Terminal Name Connector Terminal
E16 122 APP sensorE12 (LHD models)
M204 (RHD models)4
F10 36 Turbocharger boost sensor F50 1

EC-1184
< COMPONENT DIAGNOSIS >[K9K]
P0685 ECM RELAY
P0685 ECM RELAY
DTC LogicINFOID:0000000001162653
DTC DETECTION LOGIC
NOTE:
If the DTC is present:
-Malfunction indicator (Red) lights up.
Diagnosis ProcedureINFOID:0000000001162654
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E15. Refer to Ground Inspection in GI-58, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT
1. Check the continuity between ECM harness connector and ground.
2. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair open circuit or short power in harness or connectors.
3.CHECK ECM POWER SUPPLY CIRCUIT
Check the voltage between ECM harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 6.
4.CHECK ECM POWER SUPPLY CIRCUIT-II
1. Disconnect ECM harness connector.
2. Disconnect IPDM E/R harness connector E43.
3. Check the continuity between ECM harness connector and IPDM E/R harness connector.
DTC No. Trouble diagnosis name Possible cause
P0685ECM RELAY CIRCUIT
 CO: Open circuit
 CC.0: Short circuit to ground
 CC.1: Short circuit to +12V Harness or connectors
(The ECM relay circuit is open or short-
ed.)
 IPDM E/R (ECM relay)
ECM
Ground Continuity
Connector Terminal
E16123
Ground Existed 124
125
128
+–
Vo l ta g e
Connector Terminal Connector Terminal
F11 60 E16 128 Battery voltage

EC-1186
< COMPONENT DIAGNOSIS >[K9K]
P1089 FUEL PUMP
P1089 FUEL PUMP
DTC LogicINFOID:0000000001162661
DTC DETECTION LOGIC
NOTE:
NOTE:
-If DTC P1089 is displayed with DTC P0180, first perform trouble diagnosis for DTC P0180. Refer to
EC-1136, "
DTC Logic".
-If DTC P1089 is displayed with DTC P0190, first perform trouble diagnosis for DTC P0190. Refer to
EC-1138, "
DTC Logic".
Conditions for applying the diagnostic procedure to the stored DTCs:
The DTC appears when the engine is running.
If the DTC is present:
-Malfunction indicator (Red) lights up.
Diagnosis ProcedureINFOID:0000000001162662
1.CHECK LOW PRESSURE FUEL SUPPLY SYSTEM
Refer to EC-1043, "
BASIC INSPECTION : Special Repair Requirement (TEST 1: Low Pressure Fuel Supply
System Check)".
Is the inspection result normal?
OK >> GO TO 2.
NG >> Replace or replace. Then GO TO 9.
2.CHECK INTERNAL FUEL TRANSFER PUMP
Refer to EC-1044, "
BASIC INSPECTION : Special Repair Requirement (TEST 2: Internal Fuel Transfer Pump
Check)".
Is the inspection result normal?
OK >> GO TO 3.
NG >> Replace or replace. Then GO TO 9.
3.CHECK HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE)
Refer to EC-1044, "
BASIC INSPECTION : Special Repair Requirement [TEST 3: High Pressure Supply Pump
(Pressure Control Valve) Check]".
Is the inspection result normal?
OK >> GO TO 4.
NG >> Replace or replace. Then GO TO 9.
DTC No. Trouble diagnosis name Possible cause
P1089FUEL RAIL PRESSURE REGULATION FUNCTION
 1.DEF: High pressure supply pump (Pressure control valve) closed
 2.DEF: High pressure supply pump (Pressure control valve) open
 3.DEF: High pressure supply pump (Volumetric control valve) open
 4.DEF: High pressure supply pump (Volumetric control valve) closed
 5.DEF: Component malfunction: High pressure supply pump (Pressure
control valve or Volumetric control valve)
 6.DEF: High pressure supply pump (Pressure control valve) oscillation
 7.DEF: High pressure supply pump (Volumetric control valve)) oscilla-
tion Harness or connectors
[High pressure supply pump (volumetric
control valve) circuit is open or shorted.]
[High pressure supply pump (Pressure
control valve) circuit is open or shorted.]
(Fuel rail pressure sensor circuit is open or
shorted.)
 High pressure supply pump
 High pressure supply pump (Pressure
control valve)
 High pressure supply pump (Volumetric
control valve)
 Fuel line
 Fuel rail
 Fuel injector
 Fuel rail pressure sensor
 Fuel rail pressure relief valve
 Air mixture with fuel
 Lack of fuel