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ComponentsThrottle Actuator Control Throttle Body Range / Performance (P2119)
DESCRIPTION
The electronic throttle control system is composed of the throttle actuator,
throttle position sensor, accelerator pedal position sensor, and ECM. The ECM operates
the throttle actuator to regulate the throttle valve in response to driver inpu ...
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
HINT:
If a DTC is displayed during the DTC check, check the parts listed in
the table below and proceed to the "See page" given.
If multiple suspected areas are listed, the potential causes of the
s ...
Catalyst System Efficiency Below Threshold (Bank 1) (P0420)
MONITOR DESCRIPTION
The ECM uses sensors mounted in front of and behind the Three-Way Catalytic Converter
(TWC) to monitor its efficiency.
The first sensor, the air fuel ratio sensor, sends pre-catalyst information to
the ECM. The second sensor, the heat ...