DTC DETECTION LOGIC
| DTC | Trouble diagnosis name | DTC detection condition | Possible causes |
| P0890 | Transmission control module power relay sense circuit low | The battery voltage supplied to the TCM is
less than 8.4 V continuously for 200 msec or
more under the following diagnosis condition: - Diagnosis condition - TCM power supply voltage: More than 11 V |
Harness or connector (TCM power supply (back-up) circuit is open or shorted.) |
DTC CONFIRMATION PROCEDURE
1.PREPARATION BEFORE WORK
If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.
>> GO TO 2.
2.CHECK DTC DETECTION
Is "P0890" detected?
YES >> Go to TM "Diagnosis Procedure".
NO >> INSPECTION END
1.CHECK TCM POWER SUPPLY (BACK-UP) CIRCUIT

Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI "Intermittent Incident".
NO >> GO TO 2.
2.DETECT MALFUNCTIONING ITEMS
Check the following items:
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI "Intermittent Incident".
NO >> Repair or replace malfunctioning parts.
P0863 TCM CommunicationDTC Logic DTC DETECTION LOGIC DTC Trouble diagnosis name DTC detection condition Possible causes P0863 TCM Communication Circui An error is detected at the initial CA ...
Windows
Power windows (if so equipped)
WARNING
Make sure that all passengers have
their hands, etc. inside the vehicle while
it is in motion and before closing the
windows. Use the window lock switch to
prevent unexpected use of the power
windows
To help avoid risk of injury or death
thr ...
P0863 TCM Communication
Description
CAN (Controller Area Network) is a serial communication line for real time
application. It is an on-vehicle multiplex
communication line with high data communication speed and excellent malfunction
detection ability.
Many electronic control units are equipped onto a vehicle, and ...