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TEST ACTION APPLICABILITY
3 Ignition Off
Disconnect the Ignition Coil Connector.
Note: Check connectors - Clean/repair as necessary.
Is any Terminal damaged, pushed out or miswired?All
Ye s®Repair as necessary.
Perform Powertrain Verification Test VER-2A.
No®Go To 4
4 Ignition Off
Disconnect the Ignition Coil Connector.
Note: Check connectors - Clean/repair as necessary.
Using an Ohmmeter, measure the Ignition Coil #2 Primary Circuit for resistance.
Is the resistance below 2.0 ohms?All
Ye s®Go To 5
No®Replace the Ignition Coil.
Perform Powertrain Verification Test VER-2A.
5 Ignition Off
Disconnect the Ignition Coil Connector.
Note: Check connectors - Clean/repair as necessary.
Disconnect the Powertrain Control Module Connector.
Note: Check connectors - Clean/repair as necessary.
With an Ohmmeter, measure the resistance of the Ignition Coil Driver #2 Circuit to
ground at the PCM Connector.
Is the resistance below 5.0 ohms?All
Ye s®Repair the Ignition Coil #2 Driver Circuit for a short to ground.
Perform Powertrain Verification Test VER-2A.
No®Go To 6
6 Ignition Off
Disconnect the Powertrain Control Module Connector.
Note: Check connectors - Clean/repair as necessary.
Disconnect the Ignition Coil Connector.
Note: Check connectors - Clean/repair as necessary.
Using an Ohmmeter, test the Ignition Coil #2 Driver Circuit for resistance.
Is the resistance below 5.0 ohms?All
Ye s®Go To 7
No®Repair the open Ignition Coil #2 Driver Circuit.
Perform Powertrain Verification Test VER-2A.
7 Ignition off.
If there are no potential causes remaining, the PCM is assumed to be defective.
View repair options.All
Repair
Replace the PCM.
Perform Powertrain Verification Test VER-2A.
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DRIVEABILITY
P-0352 IGNITION COIL #2 PRIMARY CIRCUIT ÐContinued
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TEST ACTION APPLICABILITY
8 Ignition Off
Start Engine.
Wiggle Wiring Harness from the Ignition Coil to the PCM.
Does the engine miss or stall?All
Ye s®Repair as necessary where wiggling caused problem to appear.
Perform Powertrain Verification Test VER-2A.
No®Go To 9
9 Ignition Off
Using the schematic as a guide, inspect the Wiring and Connectors.
Were any problems found?All
Ye s®Repair as necessary.
Perform Powertrain Verification Test VER-2A.
No®Test Complete.
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DRIVEABILITY
P-0352 IGNITION COIL #2 PRIMARY CIRCUIT ÐContinued
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Symptom:
P-0353 IGNITION COIL #3 PRIMARY CIRCUIT
When Monitored and Set Condition:
P-0353 IGNITION COIL #3 PRIMARY CIRCUIT
When Monitored: With battery voltage greater than 8 volts during engine cranking or
greater than 12 volts with engine running, and none of the coils in dwell when checked.
Set Condition: Peak current is not achieved with 2.5ms of dwell. It takes 3 seconds during
cranking or up to 6 seconds while running to set.
POSSIBLE CAUSES
ASD OUTPUT CIRCUIT OPEN
IGNITION COIL CONNECTOR #3 TERMINAL OBSERVABLE DEF
IGNITION COIL #3 DRIVER CIRCUIT OPEN
IGNITION COIL #3 DRIVER CIRCUIT SHORTED TO GROUND
IGNITION COIL CIRCUIT WIRING HARNESS INTER DEFECT
IGNITION COIL CIRCUIT WIRING HARNESS OBS DEFECT
IGNITION COIL #3 RESISTANCE NOT ABOVE 2.0 OHMS
PCM DEFECTIVE (IGN COIL #3)
TEST ACTION APPLICABILITY
1 Ignition On, Engine Not Running
With the DRB, read codes.
Is the Global Good Trip displayed and equal to 0?Engine Ð 3.3L V6
and/or 3.8L V6
and/or Engine Ð
3.3L V6 FFV
Ye s®Go To 2
No®Go To 8
2 Ignition Off
Disconnect the Ignition Coil Connector.
Note: Check connectors - Clean/repair as necessary.
Key on.
With the DRB, actuate Ignition Coil #3.
With a Voltmeter, probe the ASD Output Circuit.
Is the voltage above 10.0 volts?Engine Ð 3.3L V6
and/or 3.8L V6
and/or Engine Ð
3.3L V6 FFV
Ye s®Go To 3
No®Repair the open ASD Output Circuit.
Perform Powertrain Verification Test VER-2A.
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DRIVEABILITY
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TEST ACTION APPLICABILITY
3 Ignition Off
Disconnect the Ignition Coil Connector.
Note: Check connectors - Clean/repair as necessary.
Is any terminal damaged, pushed out, or miswired?Engine Ð 3.3L V6
and/or 3.8L V6
and/or Engine Ð
3.3L V6 FFV
Ye s®Repair as necessary.
Perform Powertrain Verification Test VER-2A.
No®Go To 4
4 Ignition Off
Disconnect the Ignition Coil Connector.
Note: Check connectors - Clean/repair as necessary.
Using an ohmmeter, measure the Ignition Coil #3 Primary Circuit for resistance.
Is the resistance below 2.0 ohms?Engine Ð 3.3L V6
and/or 3.8L V6
and/or Engine Ð
3.3L V6 FFV
Ye s®Go To 5
No®Replace the Ignition Coil.
Perform Powertrain Verification Test VER-2A.
5 Ignition Off
Disconnect the Ignition Coil Connector.
Note: Check connectors - Clean/repair as necessary.
Disconnect the PCM Connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of Ignition Coil #3 Driver Circuit to ground.
Is the resistance below 5.0 ohms?Engine Ð 3.3L V6
and/or 3.8L V6
and/or Engine Ð
3.3L V6 FFV
Ye s®Repair the Ignition Coil #3 Driver Circuit for a short to ground.
Perform Powertrain Verification Test VER-2A.
No®Go To 6
6 Ignition Off
Disconnect the PCM.
Note: Check connectors - Clean/repair as necessary.
Disconnect the Ignition Coil Connector.
Note: Check connectors - Clean/repair as necessary.
Using an ohmmeter, measure the Ignition Coil #3 Driver Circuit for resistance from
the PCM Connector to the Coil Connector.
Is the resistance below 5.0 ohms?Engine Ð 3.3L V6
and/or 3.8L V6
and/or Engine Ð
3.3L V6 FFV
Ye s®Go To 7
No®Repair the open Ignition Coil #3 Driver Circuit.
Perform Powertrain Verification Test VER-2A.
7 Ignition Off
If there are no potential causes remaining, the PCM is assumed to be defective.
View repair options.Engine Ð 3.3L V6
and/or 3.8L V6
and/or Engine Ð
3.3L V6 FFV
Repair
Replace the PCM.
Perform Powertrain Verification Test VER-2A.
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DRIVEABILITY
P-0353 IGNITION COIL #3 PRIMARY CIRCUIT ÐContinued
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TEST ACTION APPLICABILITY
8 Start Engine.
Wiggle Wiring Harness from the Ignition Coil to the PCM.
Does the engine miss or stall?Engine Ð 3.3L V6
and/or 3.8L V6
and/or Engine Ð
3.3L V6 FFV
Ye s®Repair as necessary where wiggling caused problem to appear.
Perform Powertrain Verification Test VER-2A.
No®Go To 9
9 Ignition Off
Using the schematic as a guide, inspect the Wiring and Connectors.
Were any problems found?Engine Ð 3.3L V6
and/or 3.8L V6
and/or Engine Ð
3.3L V6 FFV
Ye s®Repair as necessary.
Perform Powertrain Verification Test VER-2A.
No®Test Complete.
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DRIVEABILITY
P-0353 IGNITION COIL #3 PRIMARY CIRCUIT ÐContinued
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TEST ACTION APPLICABILITY
4NOTE: Check the exhaust for excessive smoke from internal oil or coolant
leaks.
Is there an oil or coolant consumption condition present?All
Ye s®Repair engine mechanical as necessary and replace Catalytic
Converter.
Perform VERIFICATION TEST VER-5A3.
No®Go To 5
5NOTE: A new Downstream O2 Sensor along with an aging Upstream O2
Sensor may cause this trouble code to set.
Review vehicle repair history.
Has the Downstream O2 Sensor been replaced without replacing the Upstream O2
Sensor?All
Ye s®Replace the appropriate Upstream Oxygen Sensor.
Perform VERIFICATION TEST VER-5A3.
No®Replace the Catalytic Converter.
Perform VERIFICATION TEST VER-5A3.
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DRIVEABILITY
P-0420 1/1 CATALYTIC CONVERTER EFFICIENCY ÐContinued
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Symptom:
P-1195 SLOW 1/1 O2S DURING CATALYST MONITOR
When Monitored and Set Condition:
P-1195 SLOW 1/1 O2S DURING CATALYST MONITOR
When Monitored: With the engine running, coolant greater than 76 deg C (170 deg F),
open throttle, steady to slight increasing vehicle speed > 28 Km/h (18 mph) < 88 Km/h (55
mph), with a light load on the engine, for a period no less than five minutes.
Set Condition: The upstream oxygen sensor signal voltage is switching from below 0.39
volt to above 0.6 volt and back fewer times than required.
POSSIBLE CAUSES
OXYGEN SENSOR GROUND CIRCUIT OPEN
1/1 OXYGEN SENSOR CONNECTOR OBSERVABLE DEFECT
1/1 OXYGEN SENSOR DEFECTIVE
ENGINE FLUID CONSUMPTION
EXHAUST SYSTEM LEAKING
PCM CONNECTOR OBSERVABLE DEFECT
TEST ACTION APPLICABILITY
1 Start Engine
Note: Check the Exhaust for excessive smoke caused by oil or coolant
consumption.
Is there an oil or coolant consumption condition present?All
Ye s®Repair engine mechanical as necessary, and replace Upstream O2
Sensor.
Perform Powertrain Verification Test VER-5A.
No®Go To 2
2 Start Engine
Check the Exhaust System for leaks between Engine and Catalytic Converter.
Is there any Exhaust leak?All
Ye s®Repair or replace leaking Exhaust parts as necessary.
Perform Powertrain Verification Test VER-5A.
No®Go To 3
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DRIVEABILITY
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Symptom:
* CHECKING SECONDARY IGNITION
POSSIBLE CAUSES
SECONDARY IGNITION OUT OF SPECIFICATION
IGNITION COIL DEFECTIVE
SECONDARY IGNITION SYSTEM DEFECTIVE (WATER TEST)
TEST ACTION APPLICABILITY
1 Ignition Off.
Connect a suitable Engine Analyzer to the Engine.
Start Engine.
Allow Engine to idle.
Note: If the Engine will not idle, maintain a constant RPM above idle.
Note: Set the Scope to read, display or parade pattern.
Follow the equipment manufacturer's procedure for pattern analysis.
Is the secondary ignition pattern ok?All
Ye s®Go To 2
No®Repair the indicated component in the Secondary Ignition Sys-
tem.
Perform Powertrain Verification Test VER-2A.
2 Ignition Off
Connect a suitable Engine Analyzer to the engine.
Start the Engine and allow it to idle.
Note: If the engine will not idle, maintain a constant RPM above idle.
Set scope to read display or parade pattern.
Follow the equipment manufacturer's procedure for pattern analysis.
Note: Do not spray the Inductive Pickup.
With a spray bottle, spray the Ignition Cables with water and monitor Ignition
Pattern.
Did the Ignition Pattern change?All
Ye s®Repair the indicated component in the Secondary Ignition Sys-
tem.
Perform Powertrain Verification Test VER-2A.
No®Go To 3
3 Ignition Off
Connect a suitable Engine Analyzer to the engine.
Start the engine and allow it to idle.
Note: If the engine will not idle, maintain a constant RPM above idle.
Note: Set the scope to read display or parade pattern.
Follow the equipment manufacturer's procedure for pattern analysis.
Momentarily remove and reinstall the Spark Plug Wires.
While disconnecting each wire, observe the secondary KV line.
Is the open circuit Secondary voltage at least 25KV?All
Ye s®Test Complete.
No®Replace the Ignition Coil.
Perform Powertrain Verification Test VER-2A.
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DRIVEABILITY
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