Nissan Sentra Service Manual: Hvac 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 a/c auto amp. 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 a/c auto amp.
- Check the resistance between the a/c auto amp. Harness connector terminals.
Is the measurement value within the specification? Yes >> go to 3.
No >> repair the a/c auto amp. Branch line.
3.Check power supply and ground circuit
Check the power supply and the ground circuit of the a/c auto amp. Refer to hac-83, "a/c auto amp. : Diagnosis procedure".
Is the inspection result normal? Yes (present error)>>replace the a/c auto amp. Refer to hac-105, "removal and installation".
Yes (past error)>>error was detected in the a/c auto amp. Branch line.
No >> repair the power supply and the ground circuit.
Strg 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 steering angle sensor fo ...
BCM 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 bcm for damage, bend and ...
Other materials:
Sport mode control
SPORT MODE CONTROL : System Description
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
SPORT mode that keeps high engine revolution and provides direct feel
and acceleration performance suitable
for driving on winding road.
ECM receives an SPORT mode signal from TCM via CAN communication and
...
U1002 System comm (CAN)
DTC Logic
DTC DETECTION LOGIC
DTC
Display item
Malfunction detected condition
Possible cause
U1002
SYSTEM COMM(CAN)
When ABS actuator and electric unit (control unit) is not
transmitting or receiving CAN communication signal for 2
seconds or less.
C ...
Diagnosis description : counter system
RELATIONSHIP BETWEEN MIL, 1ST TRIP DTC, DTC, AND DETECTABLE ITEMS
When a malfunction is detected for the first time, the 1st trip DTC and
the 1st trip freeze frame data are
stored in the ECM memory.
When the same malfunction is detected in two consecutive trips, the DTC
and the freeze ...
