Reference Value
TERMINAL LAYOUT
PHYSICAL VALUES
MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH
Fail Safe
FAIL-SAFE CONTROL
Switches to fail-safe control when malfunction is detected in encoder signal that detects up/down speed and direction of door glass. Switches to fail-safe control when error beyond regulation value is detected between the fully closed position and the actual position of the glass.
Error | Error condition |
Pulse sensor malfunction | When only one side of pulse signal is being detected for more than the specified value. |
Both pulse sensors malfunction | When both pulse signals have not been detected for more than the specified value during glass open/close operation. |
Pulse direction malfunction | When the pulse signal that is detected during glass open/close operation detects the opposite condition of power window motor operating direction. |
Glass recognition position malfunction 1 | When it detects the error between glass fully closed position in power window switch memory and actual fully closed position during glass open/close operation is more than the specified value. |
Glass recognition position malfunction 2 | When it detects pulse count more than the value of glass full stroke during glass open/close operation. |
It changes to condition before initialization and the following functions do not operate when switched to failsafe control.
Perform initial operation to recover when switched to fail-safe mode. However, it switches back to fail-safe control when malfunction is found in power window main switch or front power window motor (driver side).
Basic inspection
Inspection and adjustment
Additional service when replacing control unit (bcm)
Additional service when replacing control unit (bcm) : description
Before replacement
When replacing BCM, save or print current vehicle specification with CONSULT
configuration before replacement.
Note:
If “ ...
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
Description
Ecu identification
The bcm part number is displayed.
Self Diagnostic Result
...
DTC/Circuit diagnosis
U0073 COMMUNICATION BUS A OFF
DTC Logic
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
Possible causes
U0073
COMM BUS A OFF
(Control Module Communication
Bus A Off)
TCM communication blockage lasts for 2 sec ...