Nissan Altima L32. Instruction — part 317
P1554 BATTERY CURRENT SENSOR
EC-389
< COMPONENT DIAGNOSIS >
[QR25DE FOR CALIFORNIA]
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2. Check the voltage between ECM harness connector and
ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Go to
Diagnosis Procedure
INFOID:0000000004349437
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 BATTERY CURRENT SENSOR POWER SUPPLY CIRCUIT
1. Disconnect battery current sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between battery current sensor harness con-
nector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair open circuit or sort to ground or short to power in
harness or connectors.
3.
CHECK BATTERY CURRENT SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between battery current 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 4.
NO
>> Repair open circuit or sort to ground or short to power in harness or connectors.
4.
CHECK BATTERY CURRENT SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check the continuity between battery current sensor harness connector and ECM harness connector.
ECM
Ground
Voltage
Connector
Terminal
F13
42
(Battery current sensor signal)
Ground Above 2.3 V at least once
JMBIA1604ZZ
Battery current sensor
Ground
Voltage
Connector
Terminal
F5
1
Ground
Approx. 5 V
JMBIA1602ZZ
Battery current sensor
ECM
Continuity
Connector
Terminal
Connector Terminal
F5
2
F13
44
Existed
Battery current sensor
ECM
Continuity
Connector
Terminal
Connector Terminal
F5
3
F13
42
Existed
EC-390
< COMPONENT DIAGNOSIS >
[QR25DE FOR CALIFORNIA]
P1554 BATTERY CURRENT SENSOR
2. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair open circuit or sort to ground or short to power in harness or connectors.
5.
CHECK BATTERY CURRENT SENSOR
EC-390, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace battery negative cable assembly.
6.
CHECK INTERMITTENT INCIDENT
GI-42, "Intermittent Incident"
>> INSPECTION END
Component Inspection
INFOID:0000000004349438
1.
CHECK BATTERY CURRENT SENSOR
1. Reconnect harness connectors disconnected.
2. Disconnect battery negative cable (1).
3. Install jumper cable (A) between battery negative terminal and
body ground.
4. Turn ignition switch ON.
5. Check the voltage between ECM harness connector and
ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace battery negative cable assembly.
: To body ground
ALBIA0076ZZ
ECM
Ground
Voltage
Connector
Terminal
F13
42
(Battery current sensor signal)
Ground
Approx. 2.5 V
JMBIA1603ZZ
P1564 ASCD STEERING SWITCH
EC-391
< COMPONENT DIAGNOSIS >
[QR25DE FOR CALIFORNIA]
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P1564 ASCD STEERING SWITCH
Description
INFOID:0000000004349439
ASCD steering switch has variant values of electrical resistance for each button. ECM reads voltage variation
of switch, and determines which button is operated.
for the ASCD function.
DTC Logic
INFOID:0000000004349440
DTC DETECTION LOGIC
NOTE:
If DTC P1564 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer to
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.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Wait at least 10 seconds.
3. Press MAIN switch for at least 10 seconds, then release it and wait at least 10 seconds.
4. Press CANCEL switch for at least 10 seconds, then release it and wait at least 10 seconds.
5. Press RESUME/ACCELERATE switch for at least 10 seconds, then release it and wait at least 10 sec-
onds.
6. Press SET/COAST switch for at least 10 seconds, then release it and wait at least 10 seconds.
7. Check DTC.
Is DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000004349441
1.
CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E9. Refer to Ground Inspection in
.
Is the inspection result normal?
YS
>> GO TO 2.
NO
>> Repair or replace ground connection.
2.
CHECK ASCD STEERING SWITCH CIRCUIT
With CONSULT-III
1. Turn ignition switch ON.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
P1564
ASCD steering switch
• An excessively high voltage signal from the
ASCD steering switch is sent to ECM.
• ECM detects that input signal from the
ASCD steering switch is out of the specified
range.
• ECM detects that the ASCD steering switch
is stuck ON.
• Harness or connectors
(The switch circuit is open or shorted.)
• ASCD steering switch
• ECM
EC-392
< COMPONENT DIAGNOSIS >
[QR25DE FOR CALIFORNIA]
P1564 ASCD STEERING SWITCH
2. Select “MAIN SW”, “CANCEL SW”, “RESUME/ACC SW” and “SET SW” in “DATA MONITOR” mode with
CONSULT-III.
3. Check each item indication under the following conditions.
Without CONSULT-III
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector and
ground.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> GO TO 3.
3.
CHECK ASCD STEERING SWITCH GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Disconnect combination switch harness connector M88.
4. Check the continuity between combination switch and ECM harness connector.
5. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors M1, E30
• Combination switch (spiral cable)
• Harness for open and short between ECM and combination switch
Monitor item
Condition
Indication
MAIN SW
MAIN switch
Pressed
ON
Released
OFF
CANCEL SW
CANCEL switch
Pressed
ON
Released
OFF
RESUME/ACC SW RESUME/ACCELERATE switch
Pressed
ON
Released
OFF
SET SW
SET/COAST switch
Pressed
ON
Released
OFF
ECM
Ground
Condition
Voltage
Connector
Terminal
E10
85
(ASCD
steering
switch sig-
nal)
Ground
MAIN switch: Pressed
Approx. 0 V
CANCEL switch: Pressed
Approx. 1 V
SET/COAST switch: Pressed
Approx. 2 V
RESUME/ACCELERATE
switch: Pressed
Approx. 3 V
All ASCD steering switches:
Released
Approx. 4 V
PBIB3600E
Combination switch
ECM
Continuity
Terminal
Connector Terminal
16
E10
92
Existed
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