Nissan Altima 2007-2012 Service Manual: U1000 can comm circuit
DescriptionCAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Modern vehicle is equipped with many electronic control unit, 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.
CAN Communication Signal Chart, refer to LAN-25, "CAN Communication Signal Chart".
DTC Logic
DTC DETECTION LOGIC
Diagnosis Procedure
1.PERFORM SELF DIAGNOSTIC
1. Turn ignition switch ON and wait for 2 seconds or more.
2. Check “Self Diagnostic Result”.
Is “CAN COMM CIRCUIT” displayed? YES >> Refer to LAN-8, "CAN Communication Control Circuit".
NO >> Refer to GI-42, "Intermittent Incident".
U1010 control unit (can)
DTC Logic
DTC DETECTION LOGIC
Diagnosis Procedure
1. REPLACE BCM
When DTC U1010 is detected, replace BCM.
>> Replace BCM. Refer to BCS-96, "Removal and Installation". ...
Other materials:
P0826 manual mode switch
Description
Manual mode switch is installed in CVT control device. The manual mode switch
sends shift up and shift down
switch signals to TCM.
TCM sends the switch signals to combination meter via CAN communication line.
Then manual mode switch
position is indicated on the CVT position ind ...
P0137 HO2S2
Description
The heated oxygen sensor 2, after three way catalyst (manifold),
monitors the oxygen level in the exhaust gas on each bank.
Even if switching characteristics of the air fuel ratio (A/F) sensor 1
are shifted, the air-fuel ratio is controlled to stoichiometric, by the signal
from t ...
Refrigeration system
Component
1. Heater and cooling unit assembly
2. High-pressure pipe
3. High-pressure A/C service valve
4. Junction pipe
5. High-pressure flexible hose
6. Condenser and liquid tank
7. Air deflector RH (QR25DE shown,
VQ35DE similar)
8. Air deflector LH (QR25DE shown,
VQ35DE similar)
9. R ...