Diagnosis system (HVAC)
U1000 CAN comm circuitP1701 TCM
Description
When the power supply to the TCM is cut off, for example
because the battery is removed, and the self-diagnosis
memory function stops, a malfunction is detected.
NOTE:
Since "P1701" is indicated when replacing TCM, perform diagnosis after erasing
"Self Diagnostic Results".
DTC ...
U121D AV control unit
DTC Logic
Diagnosis Procedure
1.CHECK PLAYBACK OF A DISK (CD)
U121E AV CONTROL UNIT
DTC Logic
Diagnosis Procedure
1.CHECK PLAYBACK OF A DISK (CD)
U1225 AV CONTROL UNIT
DTC Logic
DTC DETECTION LOGIC
U1227 AV CONTROL UNIT
DTC Logic
Diagnosis Procedure
1.CHECK PLAYBACK OF A ...
Diagnosis and repair work flow
Work Flow
INTRODUCTION
The TCM receives signals from the vehicle speed sensor and transmission range
switch. Then it provides shift
control or lock-up control via CVT solenoid valves.
The TCM also communicates with the ECM by means of signals
sent from sensing elements used with the OBD-r ...