Glossary of sae and toyota terms
Roof headliningEcm communication circuit malfunction
Description
The circuit is used to send trc and vsc control information from the skid
control ecu to the ecm, and
engine control information from the ecm to the skid control ecu.
Inspection procedure
Hint:
Check that the part numbers of the installed ecm and skid control ecu are
cor ...
Terminals of ecu
Check combination meter assembly
Measure the voltage and resistance of the
connector.
Check instrument panel junction block (main body ecu)
Measure the voltage and resistance of the
connectors.
...
Vehicle speed signal error (test mode dtc)
Description
The tire pressure warning ecu receives a speed signal from the combination
meter. This dtc is stored
upon entering test mode, and cleared when a vehicle speed signal of 12 mph (20
km/h) is detected for 3
seconds or more. The dtc is output only in test mode.
Wiring diagram ...