Nissan Qashqai (2007-2010). Manual - part 506
STR-10
< COMPONENT DIAGNOSIS >
B TERMINAL CIRCUIT
COMPONENT DIAGNOSIS
B TERMINAL CIRCUIT
Description
INFOID:0000000000955268
The “B” terminal is constantly supplied with battery power.
Diagnosis Procedure
INFOID:0000000000955269
CAUTION:
Perform diagnosis under the condition that 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 CVT selector lever to “P” or “N” position. (CVT models)
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 the starter motor for poor continuity.
3.
CHECK GROUND CIRCUIT STATUS (VOLTAGE DROP TEST)
1.
Shift CVT selector lever to “P” or “N” position. (CVT models)
2.
Check voltage between starter motor case and battery negative terminal.
Is the inspection result normal?
YES
>> “B” terminal circuit is OK. Further inspection is necessary. Refer to
.
NO
>> Check the starter motor case and ground for poor continuity.
Terminals
Voltage (Approx.)
(+)
(–)
Starter motor “B” terminal
Terminal
F49 (K9K)
F52 (HR16DE)
F10 (MR20DE)
2 Ground
Battery
voltage
Terminals
Condition
Voltage (Approx.)
(+)
(–)
Starter motor
“B” terminal
Terminal
Battery positive terminal
F49 (K9K)
F52 (HR16DE)
F10 (MR20DE)
2
When the ignition switch is
in START position
Less than
0.5 V
Terminals
Condition
Voltage (Approx.)
(+)
(–)
Starter motor case
Battery negative terminal
When the ignition switch is in
START position
Less than 0.2 V