4wd Control Ecu
ComponentsDiagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) Blind spot monitor data and Diagnostic Trouble Codes (DTCs) can be read from
the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning,
use the Techstream to check for malfunctions and to repair it.
2. CHECK DLC3
(a) Check ...
Lost Communication with ECM / PCM "A" (U0100,U0122)
DESCRIPTION
This DTC is output when communication is lost with the skid control ECU (brake
actuator assembly) or ECM.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
U0100
Lost Communication with ECM / PCM " ...
Communication Error from ECM to VSC (P1631)
DESCRIPTION
The ECM sends signals such as A/T information signals, dynamic radar cruise control
operation signals, brake operation demand signals, and buzzer operation demand signals
to the skid control ECU (brake actuator assembly) when the dynamic radar cruise
control is operating. Therefor ...