Nissan Maxima Service and Repair Manual: A/C switch assembly signal circuit
Diagnosis Procedure
1.CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT
- Using CONSULT, perform "SELF-DIAGNOSIS RESULTS" of HVAC.
- Check if any DTC No. is displayed in the self-diagnosis results.
NOTE: If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010.
2.CHECK RX (A/C SWITCH ASSEMBLY → A/C AUTO AMP.) CIRCUIT CONTINUITY
- Turn ignition switch OFF.
- Disconnect the A/C switch assembly and the A/C auto amp.
connectors.
- Check continuity between A/C switch assembly harness connector M104 (A) terminal 4 and A/C auto amp. harness connector M37 (B) terminal 7.
4 - 7: Continuity should exist.
- Check continuity between A/C switch assembly harness connector M104 (A) terminal 4 and ground.
4 - Ground: Continuity should not exist.
3.CHECK TX (A/C AUTO AMP. → A/C SWITCH ASSEMBLY) CIRCUIT CONTINUITY
- Check continuity between A/C switch assembly harness connector M104 (A) terminal 3 and A/C auto amp. harness connector M37 (B) terminal 6.
3 - 6: Continuity should exist.
- Check continuity between A/C switch assembly harness connector M104 (A) terminal 3 and ground.
3 - Ground: Continuity should not exist.
Magnet clutch
Description
SYSTEM DESCRIPTION
A/C auto amp. controls A/C compressor operation by ambient temperature and
signal from ECM.
Low Temperature Protection Control
A/C auto amp. will turn the A/C co ...
Power supply and ground circuit
A/C AUTO AMP.
A/C AUTO AMP.: Description
COMPONENT DESCRIPTION
A/C Auto Amp. (Air Conditioner Automatic Amplifier)
The A/C auto amp. (1) has a built-in microcomputer that processes
informatio ...
Other materials:
P2118 throttle control motor
Description
The throttle control motor is operated by the ECM and it opens and closes the
throttle valve.
The current opening angle of the throttle valve is detected by the throttle
position sensor. The throttle position
sensor it provides feedback to the ECM, when opens/closes the throttl ...
VDC off indicator lamp
Description
Component Function Check
1.VDC OFF INDICATOR LAMP OPERATION CHECK 1
Check that the lamp illuminates for approximately 2 seconds after the
ignition switch is turned ON.
2.VDC OFF INDICATOR LAMP OPERATION CHECK 2
Check that the VDC OFF indicator lamp in the combination meter tur ...
Body control system
System Description
OUTLINE
ECU DIAGNOSIS INFORMATION controls the various electrical
components. It inputs the information required to
the control from CAN communication and the signal received from each switch
and sensor.
BCM has combination switch reading function for reading the
...
Nissan Maxima Owners Manual
- Illustrated table of contents
- Safety-Seats, seat belts and supplemental restraint system
- Instruments and controls
- Pre-driving checks and adjustments
- Monitor, climate, audio, phone and voice recognition systems
- Starting and driving
- In case of emergency
- Appearance and care
- Do-it-yourself
- Maintenance and schedules
- Technical and consumer information
Nissan Maxima Service and Repair Manual
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