Nissan Primera P12. Instruction — part 343
DTC P0652, P0653 SENSOR POWER SUPPLY
EC-557
[YD (WITHOUT EURO-OBD)]
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EC
5.
CHECK INTERMITTENT INCIDENT
Refer to
EC-408, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
>> INSPECTION END
Component Inspection
EBS0159O
ACCELERATOR PEDAL POSITION SENSOR
1.
Reconnect all harness connectors disconnected.
2.
Turn ignition switch ON.
3.
Check voltage between ECM terminals 83 (APP sensor 1 sig-
nal), 91 (APP sensor 2 signal) and engine body under the fol-
lowing conditions.
4.
If NG, replace accelerator pedal assembly.
Removal and Installation
EBS0159P
ACCELERATOR PEDAL
Refer to
ACC-2, "ACCELERATOR CONTROL SYSTEM"
.
Terminal
Accelerator pedal
Voltage
83
(Accelerator pedal position
sensor 1)
Fully released
0.5 - 1.0V
Fully depressed
4.2 - 5.2V
91
(Accelerator pedal position
sensor 2)
Fully released
0.4 - 0.7V
Fully depressed
2.2 - 2.7V
MBIB0615E
EC-558
[YD (WITHOUT EURO-OBD)]
DTC P0686 ECM RELAY
DTC P0686 ECM RELAY
PFP:25230
ECM Terminals and Reference valve
EBS0159Q
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.
On Board Diagnosis Logic
EBS0159R
The MI will not light up for this self-diagnosis.
DTC Confirmation Procedure
EBS0159S
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1.
Turn ignition switch ON and then turn OFF.
2.
Wait at least 30 seconds.
3.
Turn ignition switch ON.
4.
Select “DATA MONITOR” mode with CONSULT-II.
5.
If DTC is detected, go to
EC-560, "Diagnostic Procedure"
.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA
(DC Voltage)
105
G
ECM relay (self-shutoff)
[Ignition switch ON]
[Ignition switch OFF]
●
For a few seconds after turning ignition
switch OFF
Approximately 1.2V
[Ignition switch OFF]
●
More than a few seconds after turning igni-
tion switch OFF
BATTERY VOLTAGE
(11 - 14V)
113
G
ECM relay (self-shutoff)
[Ignition switch ON]
[Ignition switch OFF]
●
For a few seconds after turning ignition
switch OFF
Approximately 1.2V
[Ignition switch OFF]
●
More than a few seconds after turning igni-
tion switch OFF
BATTERY VOLTAGE
(11 - 14V)
119
120
R
R
Power supply for ECM
[Ignition switch ON]
BATTERY VOLTAGE
(11 - 14V)
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0686
ECM relay circuit
ECM detects ECM relay is stuck closed even if
ignition switch OFF.
●
Harness or connectors
(The ECM relay circuit is shorted.)
●
ECM relay
SEF817Y
DTC P0686 ECM RELAY
EC-559
[YD (WITHOUT EURO-OBD)]
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EC
Wiring Diagram
EBS0159T
MBWA0649E
EC-560
[YD (WITHOUT EURO-OBD)]
DTC P0686 ECM RELAY
Diagnostic Procedure
EBS0159U
1.
CHECK ECM OUTPUT SIGNAL CIRCUIT FOR SHORT TO GROUND
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check harness continuity between ECM terminals 105, 113 and ground.
Refer to Wiring Diagram.
OK or NG
OK
>> GO TO 2.
NG
>> Repair short to ground in harness or connectors.
2.
CHECK ECM INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Disconnect ECM relay.
2.
Check harness continuity between ECM terminals 119, 120 and
ECM relay terminal 7. Refer to Wiring Diagram.
3.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 3.
NG
>> Repair open circuit or short to ground or short to power
in harness or connectors.
3.
CHECK ECM RELAY
Refer to
EC-560, "Component Inspection"
.
OK or NG
OK
>> GO TO 4.
NG
>> Replace ECM relay.
4.
CHECK INTERMITTENT INCIDENT
Refer to
EC-408, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
>> INSPECTION END
Component Inspection
EBS0159V
ECM RELAY
1.
Apply 12V direct current between ECM relay terminals 1 and 2.
2.
Check continuity between relay terminals 3 and 5, 6 and 7.
3.
If NG, replace ECM relay.
Continuity should not exist.
Continuity should exist.
MBIB1086E
Condition
Continuity
12V direct current supply between ter-
minals 1 and 2
Yes
OFF
No
PBIB0077E
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