Nissan Altima L32. Instruction — part 436
P0605 ECM
EC-865
< COMPONENT DIAGNOSIS >
[QR25DE EXCEPT FOR CALIFORNIA]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Diagnosis Procedure
INFOID:0000000004349830
1.
INSPECTION START
With CONSULT-III
1. Turn ignition switch ON.
2. Select “SELF-DIAG RESULTS” mode with CONSULT-III.
3. Touch “ERASE”.
4. Perform DTC CONFIRMATION PROCEDURE.
.
With GST
1. Turn ignition switch ON.
2. Select Service $04 with GST.
3. Perform DTC CONFIRMATION PROCEDURE.
.
Is the 1st trip DTC P0605 displayed again?
YES
>> GO TO 2.
NO
>> INSPECTION END
2.
REPLACE ECM
1. Replace ECM.
2. Go to
EC-563, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Require-
.
>> INSPECTION END
EC-866
< COMPONENT DIAGNOSIS >
[QR25DE EXCEPT FOR CALIFORNIA]
P0607 ECM
P0607 ECM
Description
INFOID:0000000004468253
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
DTC Logic
INFOID:0000000004349832
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Check DTC.
Is DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000004349833
1.
INSPECTION START
With CONSULT-III
1. Turn ignition switch ON.
2. Select “SELF-DIAG RESULTS” mode with CONSULT-III.
3. Touch “ERASE”.
4. Perform DTC CONFIRMATION PROCEDURE.
5. Check DTC.
With GST
1. Turn ignition switch ON.
2. Select “Service $04” with GST.
3. Perform DTC CONFIRMATION PROCEDURE.
4. Check DTC.
Is the DTC P0607 displayed again?
YES
>> GO TO 2.
NO
>> INSPECTION END
2.
REPLACE ECM
1. Replace ECM.
2. Go to
EC-563, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Require-
>> INSPECTION END
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0607
CAN communication bus
When detecting error during the initial diagno-
sis of CAN controller of ECM.
• ECM
P0643 SENSOR POWER SUPPLY
EC-867
< COMPONENT DIAGNOSIS >
[QR25DE EXCEPT FOR CALIFORNIA]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
P0643 SENSOR POWER SUPPLY
DTC Logic
INFOID:0000000004349834
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 8V at idle.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for 1 second.
2. Check DTC.
Is DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000004349835
1.
CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E9. Refer to Ground Inspection in
.
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.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
P0643
Sensor power supply
circuit short
ECM detects a voltage of power source for
sensor is excessively low or high.
• Harness or connectors
(APP sensor 1 circuit is shorted.)
(TP sensor circuit is shorted.)
(Battery current sensor circuit is shorted.)
(PSP sensor circuit is shorted.)
[Camshaft position sensor (PHASE) circuit is
shorted.]
• Accelerator pedal position sensor
• Throttle position sensor
• Battery current sensor
• Power steering pressure sensor
• Camshaft position sensor (PHASE)
EC-868
< COMPONENT DIAGNOSIS >
[QR25DE EXCEPT FOR CALIFORNIA]
P0643 SENSOR POWER SUPPLY
3. Check the voltage between APP sensor harness connector and
ground.
Is the inspection result normal?
YES
>> GO TO 7.
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 4.
NO
>> Repair short to ground or short to power in harness or connectors.
4.
CHECK COMPONENTS
Check the following.
• Battery current sensor (Refer to
EC-885, "Component Inspection"
.)
• Power steering pressure sensor (Refer to
EC-860, "Component Inspection"
• Camshaft position sensor (PHASE) (Refer to
EC-789, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace malfunctioning component.
5.
CHECK TP SENSOR
EC-716, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> GO TO 6.
6.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace electric throttle control actuator.
2. Go to
EC-565, "ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair Require-
>> INSPECTION END
7.
CHECK APP SENSOR
EC-926, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> GO TO 8.
8.
REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Replace accelerator pedal assembly.
APP sensor
Ground
Voltage
Connector
Terminal
E40
5
Ground
Approx. 5V
PBIA9607J
ECM
Sensor
Connector
Terminal
Name
Connector
Terminal
F13
47
Electric throttle control actuator
F57
1
51
Battery current sensor
F5
1
55
PSP sensor
F40
1
59
CMP sensor (PHASE)
F55
1
E10
83
APP sensor
E40
5
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