6E–165
3.2L ENGINE DRIVEABILITY AND EMISSIONS
Diagnostic Trouble Code (DTC) P0353 (Flash DTC=42) Ignition 3 Control
Circuit
060RW075
Circuit Description
The engine control module’s (ECM) control circuit 3
provides a zero-volt or a 5-volt output signal to the ignition
coil. The normal voltage on the circuit is zero volts. When
the ignition coil receives the 5-volt signal from the ECM, it
provides a ground path for the B+ supply to the primary
side of the number 3 ignition coil. When the ECM shuts off
the 5 volts to the ignition coil, the ignition coil turns “OFF.”
This causes the ignition coil primary magnetic field to
collapse, producing a voltage in the secondary coil which
fires the spark plug.
The circuit between the ECM and ignition coil is monitored
for an open circuit, short to voltage, and short to ground.
When the ECM detects a problem on ignition control
circuit 3, it will set a DTC P0353.
Conditions for Setting the DTC
D
The ignition is “ON.”
D
The engine is turning, determined by the crankshaft
position input signal.
D
Engine running speed is between 200 r.p.m and 850
r.p.m.
D
Spark signal don’t present 6 samples of continuous.
Action Taken When the DTC Sets
D
The ECM will illuminate the malfunction indicator lamp
(MIL) the first time the fault is detected.
D
The ECM will store conditions which were present
when the DTC was set as Freeze Frame and in the
Failure Records data.
Conditions for Clearing the MIL/DTC
D
The ECM will turn the MIL “OFF” on the third
consecutive trip cycle in which the diagnostic has been
run and the fault condition is no longer present.
D
A history DTC P0353 will clear after 40 consecutive
warm-up cycles occur without a fault.