Description
The idling speed is controlled by the etcs (electronic throttle control system). The etcs is comprised of: 1) the one valve type throttle body; 2) the throttle actuator, which operates the throttle valve; 3) the throttle position (tp) sensor, which detects the opening angle of the throttle valve; 4) the accelerator pedal position (app) sensor, which detects the accelerator pedal position; and 5) the ecm, which controls the etcs. Based on the target idling speed, the ecm controls the throttle actuator to provide the proper throttle valve opening angle.
Monitor description
The ecm monitors the idling speed and idling air flow volume to conduct idle speed control (isc). The ecm determines that the isc system is malfunctioning if the following conditions apply:
Example: if the actual idling speed varies from the target idling speed by more than 200 rpm* 5 times during a drive cycle, the ecm illuminates the mil and sets the dtc.
Hint:
*: Threshold idling speed varies with engine load.
Monitor strategy
Typical enabling conditions
Typical malfunction thresholds
Inspection procedure
Hint:
Hint:
If any dtcs other than p0505 are output, troubleshoot those dtcs first.
Ok: pcv hose is connected correctly and is not damaged.
Ok: no leakage from air induction system.
Ok: throttle valve is not contamainated with foreign objects and moves smoothly.
Removal
Remove radiator support opening cover
Remove front wheel rh
Remove front fender apron rh
Remove front suspension member
reinforcement rh
Remove the 4 bolts and reinforcement rh.
Remove fan and generator v belt
Using sst and 19 mm socket wrench, loosen the vribbed
belt ...
Short to b+ in can bus line
Description
There may be a short circuit between the can bus line and +b when there is
resistance between
terminals 6 (canh) and 16 (bat) or terminals 14 (canl) and 16 (bat) of the dlc3.
Wiring diagram
Inspection procedure
Notice:
Turn the ignition switch off before measuring ...
Dtc check / clear
Check dtc
When using intelligent tester:
Connect the intelligent tester (with can vim) to
the dlc3.
Turn the ignition switch on and press the
intelligent tester main switch on.
Read the dtcs by following the prompts on the
intelligent tester.
Hint:
Refer to the intel ...