Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Cruise control system / Open vehicle speed sensor circuit/ Vehicle speed signal abnormal
Toyota Corolla (E120): Open vehicle speed sensor circuit/ Vehicle speed signal abnormal
Dtc 21 open vehicle speed sensor circuit
Dtc 23 vehicle speed signal abnormal
Other materials:
Inspection procedure
1 Check p squib circuit(airbag sensor assy center – instrument
panel passenger airbag assy)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connector between the airbag sensor
assy center and the instrument panel ...
Overhaul
1. Remove bench type rear seat cushion assy
Disengage the 2 clamps, and then remove the seat cushion.
2. Remove separate type rear seat back assy
lean the seat back forward.
remove the 2 clips.
remove the 2 bolts and seat back lh.
employ the same manner describ ...
Circuit description
The intake air temperature (iat) sensor, mounted on the mass
air flow (maf) sensor, monitors the intake air temperature. The
iat sensor has a thermistor that varies its resistance depending
on the temperature of the intake air. When the air temperature
is low, the resistance in the thermisto ...