Description
The purpose of this circuit is to prevent the engine from stalling while driving in the lock-up condition when the brakes are suddenly applied.
When the brake pedal is depressed, this switch sends a signal to the ecm. Then the ecm cancels the operation of the lock-up clutch while braking is in progress.
Monitor description
This dtc indicates that the stop light switch remains on. When the stop light switch remains on during go and stop driving, the ecm interprets this as a fault in the stop light switch. Then the mil illuminates and the ecm stores the dtc. The vehicle must go (30 km/h (18.63 Mph) or more) and stop (less than 3 km/h (1.86 Mph)) 5 times for 2 driving cycles in order for the dtc to be output.
Monitor strategy
Typical enabling conditions
Typical malfunction thresholds
Wiring diagram
Inspection procedure
Hint:
Using the intelligent tester's data list allows switch, sensor, actuator and other item values to be read without removing any parts. Reading the data list early in troubleshooting is one way to save time.
Notice:
In the table below, the values listed under "normal condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
Standard resistance
Standard voltage
Replace ecm
Parts location
System diagram
System description
Cruise control system
This system is controlled by the ecm, and is activated by
the throttle position sensor and motor. The ecm controls
the following functions: on-off, set / coast,
resume / accel, cancel, vehicle speed operation,
motor ...
Downhill assist control operation switch (test mode dtc)
Description
The downhill assist control switch is connected to the skid control ecu in
the abs and traction
actuator.
Dtc c1379/74 can be detected when the downhill assist control switch sends the
downhill assist control
switch signal or test mode ends. Dtc c1379/74 is output only in t ...
On-vehicle inspection
Check front seat side airbag assembly (vehicle not involved in
collision)
Perform a diagnostic system check (see page rs-
49).
With the front seat side airbag installed on the
vehicle, perform a visual check. If any of the defects
mentioned below are present, replace the fron ...