Rear window defogger switch does not light, but rear window defogger
operates
FilamentECU diagnosis information
FRONT AIR CONTROL
Reference Value
TERMINAL LAYOUT
PHYSICAL VALUES
DTC Inspection Priority Chart
If some DTCs are displayed at the same time, perform inspections one by one
based on the following priority
chart.
Priority
Detected items (DTC)
1
...
Front wiper auto stop signal circuit
Component Function Check
1. CHECK FRONT WIPER (AUTO STOP) SIGNAL
Select FR WIPER STOP of BCM (WIPER) data monitor item.
Operate the front wiper.
Check that FR WIPER STOP changes from ON to OFF according to the
wiper position
Is the inspection result normal?
YES ...
U0102 lost communication (Transfer)
DTC Description
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
U0102
LOST COMM (TRANSFER)
(Lost Communication With Transfer Case Control
Module)
When the ignition switch is ON, TCM is unable to receive the CAN
...