Symptom:
* CHECKING THE ENGINE MECHANICAL SYSTEMS
POSSIBLE CAUSES
ENGINE COMPRESSION OUT OF SPECIFICATION
VALVE TIMING OUT OF SPECIFICATION
POWERTRAIN CONTROL MODULE DEFECTIVE
CLEAN SPARK PLUGS
SPARK PLUG CABLES POSITIONED INCORRECTLY
TEST ACTION APPLICABILITY
1 Turn Ignition off.
Inspect Spark Plug Cables for correct placement.
Are all Spark Plug Cables positioned correctly?All
Ye s®Go To 2
No®Reinstall Spark Plug Cables as necessary.
2 Turn Ignition off.
Remove all Spark Plugs and inspect the tips for wet fuel.
Are the Spark Plug tips wet?All
Ye s®Clean the spark plugs.
No®Go To 3
3 Turn Ignition off.
Using service information procedures, check Engine compression.
Is Engine compression within specifications?All
Ye s®Go To 4
No®Repair the Engine as necessary.
Perform Verification Test VER-1A.
4 Turn Ignition off.
Using service information procedures, check Engine Valve timing.
Is Valve timing within specifications?All
Ye s®Go To 5
No®Repair Valve timing as necessary.
Perform Verification Test VER-1A.
5 If there are no potential causes or DTCs remaining, the Powertrain Control Module
is assumed to be defective.
View repair options.All
Repair
Replace the Powertrain Control Module.
Perform Powertrain Verification Test VER-1A.
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TEST ACTION APPLICABILITY
21 Ignition Off.
Disconnect the Ignition Coil Secondary Cable at Spark Plug #1.
Note: Check connectors - Clean/repair as necessary.
Disconnect the Ignition Coil Secondary Cable at Spark Plug #4.
Note: Check connectors - Clean/repair as necessary.
Note: Either Spark Plug #1 or #4 will not produce a good spark.
Remove Spark Plugs #1 and #4.
Inspect and determine which Spark Plug needs replacement.
View repair options.ENGINE - 2.0L
and 2.4L I-4 DOHC
Repair
Replace the Spark Plug that will not produce a spark.
Perform Powertrain Verification Test VER-1A.
22 Ignition Off.
Disconnect the Ignition Coil Connector.
Note: Check connectors - Clean/repair as necessary.
Inspect Terminals.
Is any Terminal damaged, pushed out, or miswired?ENGINE - 2.0L
and 2.4L I-4 DOHC
Ye s®Repair Terminal(s) for damage, pushout, or miswiring.
Perform Powertrain Verification Test VER-1A.
No®Go To 23
23 Ignition On, Engine Not Running.
With the DRB, actuate Ignition Coil #1.
With a Voltmeter, measure the ASD Relay Output Circuit.
Is the voltage above 10 volts?ENGINE - 2.0L
and 2.4L I-4 DOHC
Ye s®Replace Ignition Coil.
Perform Powertrain Verification Test VER-1A.
No®Go To 24
24 Ignition Off.
Disconnect the Ignition Coil Connector.
Note: Check connectors - Clean/repair as necessary.
Disconnect the ASD Relay.
Note: Check connectors - Clean/repair as necessary.
Using a Jumper Wire connect the ASD Relay Output Circuit to Ground at the
Ignition Coil Connector.
With an Ohmmeter, measure the ASD Relay Output Circuit for resistance to ground
at the Relay.
Is the resistance below 5.0 ohms?ENGINE - 2.0L
and 2.4L I-4 DOHC
Ye s®Go To 25
No®Repair open ASD Relay Output Circuit.
Perform Powertrain Verification Test VER-1A.
25 Ignition Off.
Disconnect the ASD Relay.
Note: Check connectors - Clean/repair as necessary.
With a Voltmeter, measure the Fused B(+) Circuit, cavity B in ASD Relay Connector.
Is the Voltage above 10 volts?ENGINE - 2.0L
and 2.4L I-4 DOHC
Ye s®Replace the Auto Shutdown Relay.
Perform Verification Test VER-1A
No®Repair open Fused B(+).
Perform Verification TEST VER-1A
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* CHECKING THE SECONDARY IGNITION SYSTEM ÐContinued
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