Nissan Altima 2007-2012 Service Manual: U1000 CAn comm circuit
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 excellent malfunction detection ability.
Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
NOTE: If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.
1.CHECK DTC DETECTION
1. Turn ignition switch ON.
2. Start engine and wait for at least 6 seconds.
3. Perform “SELF-DIAG RESULTS” mode for “TRANSMISSION”.
Follow the procedure “With CONSULT-III”.
Is “U1000 CAN COMM CIRCUIT” detected? YES >> Go to TM-123, "Diagnosis Procedure".
NO >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".
Diagnosis Procedure
1.CHECK CAN COMMUNICATION CIRCUIT
1. Turn ignition switch ON and start engine.
2. Perform “SELF-DIAG RESULTS” mode for “TRANSMISSION”.
Is “U1000 CAN COMM CIRCUIT” indicated? YES >> Go to LAN section. Refer to LAN-25, "CAN System Specification Chart".
NO >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".
P0615 start signal
Description
• TCM controls starter relay in IPDM E/R.
• TCM switches starter relay ON at “P” or “N” position and allows to crank
engine.
• Then it prohibits cranking other than ...
Other materials:
Compressor
Removal and Installation for Compressor -
QR25DE Models
REMOVAL
1. Discharge the refrigerant. Refer to HA-24, "HFC-134a (R-134a) Service
Procedure".
2. Remove the drive belt. Refer to EM-16, "Removal and Installation".
3. Remove the engine undercover.
4. Remove th ...
C1712 - C1715, C1720 - C1723, C1724 -C1727 Transmitter malfunction
Description
One or more transmitters are malfunctioning internally.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.DRIVE VEHICLE
1. Drive at a speed of 40 km/h (25 MPH) or more for 3 minutes, and then drive
the vehicle at any speed for
10 minutes.
2. Check all tire pressu ...
Audio unit (coupe)
Reference Value
TERMINAL LAYOUT
PHYSICAL VALUES - WITH BLUETOOTH
PHYSICAL VALUES - WITHOUT BLUETOOTH
Wiring Diagram - Coupe
...