Nissan Maxima Service and Repair Manual: Power supply and ground circuit
Diagnosis Procedure
1.CHECK GROUND CONNECTION-I
- Turn ignition switch OFF.
- Check ground connection E9. Refer to Ground Inspection
2.CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT-I
- Disconnect ECM harness connector.
- Check the continuity between ECM harness connector and ground.
- Also check harness for short to power.

3.DETECT MALFUNCTIONING PART
Check the following.
- Harness connectors E11, F2
- Harness for open or short between ECM and ground
4.CHECK ECM POWER SUPPLY CIRCUIT-I

- Reconnect ECM harness connector.
- Turn ignition switch OFF and then ON.
- Check the voltage between ECM harness connectors.

5.DETECT MALFUNCTIONING PART
Check the following.
- IPDM E/R connector E18
- 10 A fuse (No. 35)
- Harness for open or short between ECM and fuse
6.CHECK ECM POWER SUPPLY CIRCUIT-II

- Turn ignition switch OFF and wait at least 10 seconds.
- Check the voltage between ECM harness connectors.

7.CHECK ECM POWER SUPPLY CIRCUIT-III

- Turn ignition switch ON.
- Check the voltage between IPDM E/R harness connector and
ground.

8.CHECK INTERMITTENT INCIDENT
9.CHECK ECM POWER SUPPLY CIRCUIT-IV

- Turn ignition switch OFF and wait at least 10 seconds.
- Check the voltage between ECM harness connectors.

10.CHECK ECM POWER SUPPLY CIRCUIT-V
- Disconnect ECM harness connector.
- Disconnect IPDM E/R harness connector.
- Check the continuity between ECM harness connector and IPDM E/R
harness connector.
- Also check harness for short to ground and short to power.

11.CHECK 15 A FUSE
- Disconnect 15 A fuse (No. 42) from IPDM E/R.
- Check 15 A fuse.
12.CHECK ECM POWER SUPPLY CIRCUIT-VI
- Disconnect ECM harness connector.
- Disconnect IPDM E/R harness connector.
- Check the continuity between ECM harness connector and IPDM E/R
harness connector.
- Also check harness for short to ground and short to power.

13.DETECT MALFUNCTIONING PART
Check the following.
- Junction block connectors E44, E45
- Harness for open or short between ECM and IPDM E/R
14.CHECK INTERMITTENT INCIDENT
Description
The specification (SP) value indicates the tolerance of the value that is
displayed in "SPEC" of "DATA MONITOR"
mode of CONSULT during normal operation of the Engine Control System. W ...
Description
CAN (Controller Area Network) is a serial communication line for real time
application. It is an on-vehicle multiplex
communication line with high data communication speed and excelle ...
Other materials:
Turn signal lamp circuit
Description
The BCM monitors inputs from the combination switch to determine when to
activate the turn signals. The BCM outputs voltage direction to the left and
right turn signals during turn signal operation or both during hazard warning
operation. The BCM sends a turn signal indicator requ ...
Rear view camera
Removal and Installation
REMOVAL
Remove the license plate finisher. Refer to EXL-166, "Removal and
Installation".
Remove trunk lid finisher. Refer to INT-36, "Exploded View".
Disconnect the rear view camera connector (B), press the rear
view camera tab (A) and remo ...
Instrument panel assembly
Exploded View
Center speaker grille (if equipped)
Tweeter speaker grille (LH)
Front defroster grille (LH)
Instrument panel
Instrument side finisher (LH)
Lower knee protector (LH)
Instrument lower panel (LH)
Fuse block cover
Steering column lower cover (power tilt)
Ste ...