description
The speed sensor detects the wheel speed and sends the appropriate signals to the skid control ecu.
The skid control ecu converts these wheel speed signals into a 4-pulse signal and outputs it to the ecm via the combination meter. The ecm determines the vehicle speed based on the frequency of these pulse signals.
Monitor description
The ecm assumes that the vehicle is being driven, when the indicated engine speed is more than 2,300 rpm and 30 seconds have elapsed since the park/neutral position (pnp) switch was turned off. If there is no speed signal from the combination meter, despite these conditions being met, the ecm interprets this as a malfunction in the speed signal circuit. The ecm then illuminates the mil and sets the dtc.
Monitor strategy
Typical enabling conditions
Typical malfunction thresholds
Wiring diagram
Inspection procedure
Hint:
Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.
Hint:
Ok: vehicle speeds displayed on tester and speedometer display are equal.
Standard voltage
Standard voltage
Hint:
The output voltage should fluctuate up and down, similarly to the diagram, when the wheel is turned slowly.
Standard resistance (check for open)
Standard resistance (check for short)
Checking and replacing fuses
If any of the electrical components
do not operate, a
fuse may have blown. If this
happens, check and replace
the fuses as necessary.
Checking and replacing
fuses
1. Turn the engine switch to
OFF.
2. Open the fuse box cover.
Engine compartment: Type A
fuse box (if equipped)
Push claws A and B to co ...
Fuel injector
Components
Removal
Discharge fuel system pressure
Caution:
Discharge fuel system pressure
procedures must be performed before
disconnecting any part of the fuel system.
After performing the discharge fuel system
pressure procedures, pressure will remain in
the fuel line ...
Outside rear view mirrors
The rear view mirror's position
can be adjusted to
enable sufficient confirmation
of the rear view.
â– When using the outside rear
view mirrors in a cold weather
When it is cold and the outside rear
view mirrors are frozen, it may not
be possible to fold/extend them or
adjust the mirror surface. Rem ...