Nissan Sentra Service Manual: Ecu diagnosis information
BCM
Reference value
Note:
The signal tech ii tool (j-50190) can be used to perform the following functions. Refer to the signal tech ii user guide for additional information.
- Activate and display tpms transmitter ids
- Display tire pressure reported by the tpms transmitter
- Read TPMS DTCs
- Register TPMS transmitter IDs
- Check intelligent key relative signal strength
- Confirm vehicle intelligent key antenna signal strength
Values on the diagnosis tool
Terminal layout
Physical values
1: With cvt
2: With m/t
Fail-safe
Bcm performs fail-safe control when the following dtcs are detected.
Dtc inspection priority chart
If more than one DTC is displayed at the same time, perform inspections based on the following priority chart.
Dtc index
Note:
The details of time display are as follows.
- Crnt: a malfunction is detected now.
- Past: a malfunction was detected in the past.
IGN counter is displayed on Freeze Frame Data.
Diagnosis system (bcm)
Common item
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)
Application item
Consult performs the following functions via can communication with bcm.
Direct diagnostic mode
Descriptio ...
Wiring diagram
BCM
Wiring diagram
...
Other materials:
U1010 Control unit (CAN)
Description
Initial diagnosis of ABS actuator and electric unit (control
unit)
DTC Logic
DTC DETECTION LOGIC
DTC
Items
(CONSULT screen terms)
DTC detection condition
Possible cause
U1010
CONTROL UNIT (CAN)
When detecting error during the initial diagnosis
...
P0643 Sensor power supply
Description
ECM supplies a voltage of 5.0 V to some of the sensors systematically divided
into 2 groups, respectively.
Accordingly, when a short circuit develops in a sensor power source, a
malfunction may occur simultaneously
in the sensors belonging to the same group as the shorted-circui ...
Wiring diagram
Eco mode system
Wiring diagram
...
