Nissan Altima 2007-2012 Service Manual: Power supply and ground circuit
- Combination meter
- BCM (Body control module)
- IPDM E/R (Intelligent power distribution module engine room)
DTC B2205 Vehicle speed circuit
Description
The ABS actuator and electric unit (control unit) provides a vehicle speed
signal to the combination meter via
CAN communication lines.
DTC Logic
Diagnosis Procedure
Symptom: Disp ...
Combination meter
Diagnosis Procedure
1.CHECK FUSES
Check for blown combination meter fuses.
Is the inspection result normal?
YES >> GO TO 2
NO >> If fuse is blown, be sure to eliminate cause ...
Other materials:
P0720 vehicle speed sensor cvt (secondary
speed sensor)
Description
The vehicle speed sensor CVT [output speed sensor (secondary speed sensor)]
detects the revolution of the
CVT output shaft and emits a pulse signal. The pulse signal is sent to the TCM,
which converts it into vehicle
speed.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCE ...
B2557 vehicle speed
Description
BCM receives the 2 vehicle speed signals via CAN communication. One signal is
transmitted by the “unified
meter”. Another signal is transmitted by “ABS actuator and electric unit
(control unit)”. BCM compares both
signals to detect the vehicle speed.
DTC Logic
DTC DETEC ...
ECM branch line circuit
Diagnosis Procedure
INSPECTION PROCEDURE
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose
connection (unit side and connector
side).
- ECM
- Harnes ...