Infiniti FX35, FX50 (S51). Manual — part 883
P1805 BRAKE SWITCH
EC-1073
< DTC/CIRCUIT DIAGNOSIS >
[VK50VE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace stop lamp switch.
Terminals
Condition
Continuity
3 and 4
Brake pedal
Fully released
Not existed
Slightly depressed
Existed
EC-1074
< DTC/CIRCUIT DIAGNOSIS >
[VK50VE]
P2122, P2123 APP SENSOR
P2122, P2123 APP SENSOR
Description
INFOID:0000000005237574
The accelerator pedal position sensor is installed on the accelerator
pedal assembly. The sensor detects the accelerator position and
sends a signal to the ECM.
Accelerator pedal position sensor has two sensors. These sensors
are a kind of potentiometer which transform the accelerator pedal
position into output voltage, and emit the voltage signals to the ECM.
The ECM judges the current opening angle of the accelerator pedal
from these signals and controls the throttle control motor based on
these signals.
Idle position of the accelerator pedal is determined by the ECM
receiving the signal from the accelerator pedal position sensor. The
ECM uses this signal for engine operations such as fuel cut.
DTC Logic
INFOID:0000000005237575
DTC DETECTION LOGIC
NOTE:
If DTC P2122 or P2123 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.
Refer to
.
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1.
Turn ignition switch OFF and wait at least 10 seconds.
2.
Turn ignition switch ON.
3.
Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 8 V 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
EC-1074, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005237576
1.
CHECK GROUND CONNECTION
1.
Turn ignition switch OFF.
2.
Check ground connection M95. Refer to Ground Inspection in
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace ground connection.
PBIB1741E
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P2122
Accelerator pedal position
sensor 1 circuit low input
An excessively low voltage from the APP
sensor 1 is sent to ECM.
• Harness or connectors
(APP sensor 1 circuit is open or shorted.)
• Accelerator pedal position sensor
(APP sensor 1)
P2123
Accelerator pedal position
sensor 1 circuit high input
An excessively high voltage from the APP
sensor 1 is sent to ECM.
P2122, P2123 APP SENSOR
EC-1075
< DTC/CIRCUIT DIAGNOSIS >
[VK50VE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
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.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors M6, E106
• Harness for open or short between ECM and APP sensor
>> Repair open circuit, short to ground or short to power in harness or connectors.
4.
CHECK APP SENSOR 1 GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check the continuity between APP sensor 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 M6, E106
• Harness for open or short between ECM and APP sensor
>> Repair open circuit, short to ground or short to power in harness or connectors.
6.
CHECK APP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Check the continuity between APP sensor harness connector and ECM harness connector.
APP sensor
Ground
Voltage (V)
Connector
Terminal
E112
(Without ICC)
5
Ground
Approx. 5
E116
(With ICC)
5
APP sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
E112
(Without ICC)
4
M160
119
Existed
E116
(With ICC)
1
EC-1076
< DTC/CIRCUIT DIAGNOSIS >
[VK50VE]
P2122, P2123 APP SENSOR
2.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> GO TO 7.
7.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors M6, E106
• Harness for open or short between ECM and APP sensor
>> Repair open circuit, short to ground or short to power in harness or connectors.
8.
CHECK APP SENSOR
EC-1076, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> GO TO 9.
9.
REPLACE ACCELERATOR PEDAL ASSEMBLY
1.
Replace accelerator pedal assembly.
2.
EC-1077, "Special Repair Requirement"
.
>> INSPECTION END
10.
CHECK INTERMITTENT INCIDENT
GI-36, "Intermittent Incident"
>> INSPECTION END
Component Inspection
INFOID:0000000005237577
1.
CHECK ACCELERATOR PEDAL POSITION SENSOR
1.
Turn ignition switch OFF.
2.
Reconnect all harness connectors disconnected.
3.
Turn ignition switch ON.
4.
Check the voltage ECM harness connector terminals under the following conditions.
Is the inspection result normal?
YES
>> INSPECTION END
APP sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
E112
(Without ICC)
3
M160
104
Existed
E116
(With ICC)
4
ECM
Condition
Voltage (V)
Connector
+
–
Terminal
Terminal
M160
104 (APP sensor 1)
119
Accelerator pedal
Fully released
0.45 - 1.0
Fully depressed
4.4 - 4.8
108 (APP sensor 2)
115
Fully released
0.22 - 0.5
Fully depressed
2.1 - 2.5
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст