COMPONENTS
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
RemovalVC Output Circuit
DESCRIPTION
The ECM constantly generates 5 V of power from battery voltage supplied to the
+B (BATT) terminal to operate the microprocessor. The ECM also provides this power
to the sensors through the VC output circuit.
When the VC circuit is short-cir ...
Intake Air Control Valve Actuator(for Tcv)
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE INTAKE MANIFOLD
(a) Remove the intake manifold (See page ).
2. REMOVE INTAKE AIR CONTROL VALVE ACTUATOR (for TCV)
(a) Remove the 2 bolts, intake air control valve actuator a ...
Emission inspection and maintenance (I/M) programs
Some states have vehicle emission inspection programs which include OBD (On
Board Diagnostics) checks. The OBD system monitors the operation of the emission
control system.
- If the malfunction indicator lamp comes on
The OBD system determines that ...