Nissan Sentra Service Manual: EPS branch line circuit
Diagnosis procedure
1.Check connector
- Turn the ignition switch off.
- Disconnect the battery cable from the negative terminal.
- Check the terminals and connectors of the EPS control unit for damage, bend and loose connection (unit side and connector side).
Is the inspection result normal? Yes >> go to 2.
No >> repair the terminal and connector.
2.Check harness for open circuit
- Disconnect the connector of EPS control unit.
- Check the resistance between the eps control unit harness connector terminals.
Is the measurement value within the specification? YES >> GO TO 3.
NO >> Repair the EPS control unit branch line.
3.Check power supply and ground circuit
Check the power supply and the ground circuit of the eps control unit. Refer to stc-22, "diagnosis procedure".
Is the inspection result normal? Yes (present error)>>replace the eps control unit. Refer to stc-39, "removal and installation".
Yes (past error)>>error was detected in the eps control unit branch line.
No >> repair the power supply and the ground circuit
Dlc branch line circuit
Diagnosis procedure
1.Check connector
Turn the ignition switch off.
Disconnect the battery cable from the negative terminal
Check the terminals and connectors of the data link connector for d ...
M&A branch line circuit
Diagnosis procedure
1.Check connector
Turn the ignition switch off.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the combination meter for da ...
Other materials:
C1601 Battery power supply
DTC Logic
DTC DETECTION LOGIC
DTC
Display item
Malfunction detected condition
Possible cause
C1601
BATTERY VOLT
When a power supply voltage to the EPS control unit
is maintained at 17.5 V or more or at less than 9 V
continuously for five second or more.
...
A-bag branch line circuit
Diagnosis procedure
Warning:
Always observe the following items for preventing accidental
activation.
Before servicing, turn ignition switch off, disconnect battery
negative terminal, and wait 3 minutes
or more. (To discharge backup capacitor.)
Never use unspecified tester or other ...
Battery saver output/power supply circuit
Description
Provides the battery saver output/power supply. Also cuts the power supply
when the interior lamp battery
saver is activated.
Component function check
1.Check battery saver output/power supply function
Consult
Turn ignition switch on.
Turn each interior lamp to the ON posit ...
