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Nissan Pathfinder. Manual - part 1134
STR-16
< DTC/CIRCUIT DIAGNOSIS >
B TERMINAL CIRCUIT
DTC/CIRCUIT DIAGNOSIS
B TERMINAL CIRCUIT
Description
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Terminal “B” is constantly supplied with battery power.
Diagnosis Procedure
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Regarding Wiring Diagram information, refer to
.
CAUTION:
Perform diagnosis under the condition that the engine cannot start by the following procedure.
1. Remove fuel pump fuse.
2. Crank or start the engine (where possible) until the fuel pressure is released.
1.
CHECK “B” TERMINAL CIRCUIT
1. Turn ignition switch OFF.
2. Check that starter motor ”B” terminal connection is clean and tight.
3. Check voltage between starter motor ”B” terminal and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Check harness between battery and starter motor for open circuit.
2.
CHECK BATTERY CABLE CONNECTION STATUS (VOLTAGE DROP TEST)
1. Shift selector lever to ”P” (Park) or ”N” (Neutral) position.
2. Check voltage between battery positive terminal and starter motor ”B” terminal.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between the battery and starter motor for continuity.
3.
CHECK GROUND CIRCUIT STATUS (VOLTAGE DROP TEST)
1. Shift selector lever to ”P” (Park) or ”N” (Neutral) position.
2. Check voltage between starter motor case and battery negative terminal.
Is the inspection result normal?
Terminals
Voltage
(Approx.)
(+)
(-)
Starter motor “B” terminal
Terminal
F27
B
Ground
Battery voltage
Terminals
Condition
Voltage
(Approx.)
(+)
(-)
Starter motor
“B“ terminal
Terminal
Battery positive terminal
F27
B
When the ignition switch is in START position
Less than 0.5V
Terminals
Condition
Voltage
(Approx.)
(+)
(-)
Starter motor case
Battery negative terminal
When the ignition switch is in
START position
Less than 0.2V