Nissan Altima (L32) 2007-2012 Service Manual: ECU diagnosis
AIR CONDITIONER CONTROL
Reference Value
VALUES ON THE DIAGNOSIS TOOL
TERMINAL LAYOUT
PHYSICAL VALUES
Wiring Diagram - Air Conditioner Control (Auto) - Coupe
Wiring Diagram - Air Conditioner Control (Auto) - Sedan
Power supply and ground circuit for front air control
Description
COMPONENT DESCRIPTION
FRONT AIR CONTROL
The front air control has a built-in microcomputer which processes
information sent from various sensors needed for air conditioner
operation. ...
Other materials:
B2601 shift position
Description
BCM confirms the shift position with the following 2 signals.
• CVT selector lever
• P position signal from IPDM E/R (CAN)
DTC Logic
DTC DETECTION LOGIC
NOTE:
• If DTC B2601 is displayed with DTC U1000, first perform the trouble diagnosis
for DTC U1000. Refer to
SEC-4 ...
U1212 DVD-ROM data forward
Description
Refer to AV-240, "System Description".
DTC Logic
DTC DETECTION LOGIC
Diagnosis Procedure
1.CHECK DVD-ROM
Check DVD-ROM for dirt, scratches and warpage.
Is the DVD-ROM clean and undamaged?
YES >> Replace AV control unit. Refer to AV-437, "Removal and ...
P0442 evap control system
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P0442 is displayed with DTC P0456, first perform the trouble diagnosis
for DTC P0456. Refer to
EC-336, "DTC Logic".
This diagnosis detects leaks in the EVAP purge line using engine intake
manifold vacuum.
If pressure does not increase ...
