2000 CHRYSLER VOYAGER service

TEST ACTION APPLICABILITY
22 Ignition Off.
At the CMP Sensor, backprobe the CMP Sensor Signal Circuit with the Oscilloscope
voltage measurement lead.
Start the Engine and observe the CMP Sensor voltage pattern on the Oscilloscope.
Are there any of the Camshaft Position Sensor Signals missing?ENGINE - 2.0L
and 2.4L I-4
DOHC
Ye s®Go To 23
No®Go To 27
23 Ignition Off.
Disconnect the CMP Sensor Connector.
Note: Check connectors - Clean/repair as necessary.
Inspect all 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-5A.
No®Go To 24
24 Ignition Off.
Disconnect the PCM.
Note: Check connectors - Clean/repair as necessary.
Inspect all 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-5A.
No®Go To 25
25 Ignition Off.
Disconnect the CMP Sensor Connector.
Note: Check connectors - Clean/repair as necessary.
Remove & inspect the CMP Sensor & Target Magnet for damage or misalignment.
Is the Camshaft Target Magnet okay?ENGINE - 2.0L
and 2.4L I-4
DOHC
Ye s®Go To 26
No®Repair or replace Camshaft Target Magnet as necessary.
Perform Powertrain Verification Test VER-5A.
26 Ignition Off.
Disconnect the CMP Sensor Connector.
Note: Check connectors - Clean/repair as necessary.
Remove and inspect the CMP Sensor and Target Magnet for damage or mis-
alignment.
Check Camshaft endplay per pertinent service information.
Is the Camshaft endplay within specs?ENGINE - 2.0L
and 2.4L I-4
DOHC
Ye s®Replace the Camshaft Position Sensor.
Perform Powertrain Verification Test VER-5A.
No®Repair or replace Camshaft/Cylinder Head as necessary.
Perform Verification Test VER-5A.
196
DRIVEABILITY
P-1391 INTERMITTENT LOSS OF CMP OR CKP ÐContinued
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TEST ACTION APPLICABILITY
4 Check the freeze frame data to determine the conditions when code was set.
Attempt duplication of 'freeze frame' conditions for added diagnostics.
If there are no other possible causes remaining there is assumed to be an9intermit-
tent9problem with a Wiring Harness Connector or Wire.
View repair options.All
Repair
Visually inspect related Wire Harness Connectors and Harnesses.
Look for broken, bent, pushed out, or corroded terminals and for
chafed, pierced, or partiallly broken wire, respectively. Refer to
any hotlines or technical service bulletins that apply.
5 Ignition Off
Disconnect the LDP Solenoid.
Note: Check connectors - Clean/repair as necessary.
Key on.
Using a Voltmeter, measure the voltage of the Fused Ignition Switch Output Circuit
at the Solenoid Connector.
Is the voltage above 10.0 volts?All
Ye s®Go To 6
No®Repair the open Fused Ignition Switch Output Circuit.
Perform Powertrain Verification Test VER-6A.
6 Ignition Off
Disconnect the LDP Solenoid.
Note: Check connectors - Clean/repair as necessary.
Disconnect the PCM.
Note: Check connectors - Clean/repair as necessary.
Using an Ohmmeter, measure the resistance of the LDP Solenoid Control Circuit at
the PCM Connector to ground.
Is the resistance below 5.0 ohms?All
Ye s®Repair the LDP Solenoid Circuit for a short to ground.
Perform Powertrain Verification Test VER-6A.
No®Go To 7
7 Ignition Off
Disconnect the LDP Solenoid.
Note: Check connectors - Clean/repair as necessary.
Disconnect the PCM.
Note: Check connectors - Clean/repair as necessary.
With an Ohmmeter, measure the resistance of the LDP Solenoid Control Circuit from
the PCM Connector to the LDP Connector.
Is the resistance below 5.0 ohms?All
Ye s®Go To 8
No®Repair the open LDP Solenoid Control Circuit.
Perform Powertrain Verification Test VER-6A.
210
DRIVEABILITY
P-1495 LEAK DETECTION PUMP SOLENOID CIRCUIT ÐContinued
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Symptom:
* CHECKING MINIMUM IDLE AIR FLOW
POSSIBLE CAUSES
MINIMUM AIR FLOW IS WITHIN ACCEPTABLE RANGE
THROTTLE BODY DEFECTIVE (MIN AIR FLOW OUT OF RANGE)
TEST ACTION APPLICABILITY
1 Start the engine and allow it to reach operating temperature.
Perform the Minimum Air Flow test as described in service information.
Is idle RPM within the range shown in the chart?All
Ye s®Throttle Body minimum air flow is set correctly.
No®Go To 2
2 Ignition Off
Remove Throttle Body per service information.
Note: Clean Throttle Body in a well ventilated area and wear rubber gloves.
While holding the Throttle open, spray entire Throttle Body Bore with Mopar parts
cleaner.
Using a soft scuff pad, clean the Throttle Body Bore and Throttle Plate.
Using compressed air, dry the Throttle Body and install Throttle Body on manifold.
Start the engine and allow it to reach operating temperature.
With the DRB, enter System Test and perform the Minimum Air Flow Test.
Is the idle RPM within the range shown in the chart?All
Ye s®Test Complete.
No®Replace Throttle Body.
Perform Verification Test VER-2A.
246
DRIVEABILITY
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Symptom:
* CHECKING THE ENGINE MECHANICAL SYSTEMS
POSSIBLE CAUSES
CHECKING ENGINE MECHANICAL SYSTEMS
TEST ACTION APPLICABILITY
1 At this point in the diagnostic test procedure, you have determined that all of the
engine electrical systems are operating as designed; therefore, they are not the cause
of the driveability problem.
The following additional items should be checked as possible mechanical causes of
the problem:
ENGINE VACUUM - must be at least 13 inches in neutral
ENGINE VALVE TIMING - must be within specifications
ENGINE COMPRESSION - must be within specifications
CAMSHAFT LOBES - check for abnormal wear
CRANK SENSOR PICK-UP - check crankshaft slots for debris/deterioration
ENGINE EXHAUST SYSTEM - must be free of any restrictions
ENGINE PCV SYSTEM - must flow freely
ENGINE DRIVE SPROCKETS - must be properly positioned
TORQUE CONVERTER STALL SPEED - must be within specifications
POWER BRAKE BOOSTER - no internal vacuum leaks
FUEL - must be free of contamination
FUEL INJECTOR - plugged or restricted injector; control wire not connected to
correct injector
Note: If you came to this test from the oxygen sensor, and the rich or lean
condition is not caused by one of the first items above, replace the power-
train control module and perform TEST VER-2A (Road Test Verification).
Always look for any Technical Service Bulletins that may relate to the problem.
Did you come from an Oxygen Sensor rich or lean condition test?All
Ye s®Replace the Powertrain Control Module.
Perform Powertrain Verification Test VER-2A.
No®Test Complete.
253
DRIVEABILITY
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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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STARTING
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TEST ACTION APPLICABILITY
8 If there are no potential causes 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.
9 Ignition Off.
Ensure the Transmission is in Park.
With the DRB, read the Park/Neutral Position Switch.
Does the Switch show Park?All
Ye s®Go To 10
No®Repair Park/Neutral Switch.
Perform Powertrain Verification Test VER-1A.
10 Ignition Off
Disconnect the Starter Relay Connector.
Note: Check connectors - Clean/repair as necessary.
Warning: The Engine may be cranked in the next step. Keep away from
moving parts.
Warning: The engine may be cranked in the next step. Keep away from
moving parts.
Briefly connect a jumper wire between Starter Relay Output and Fused B(+)
Circuits.
Did the Starter Solenoid click when the jumper wire was connected?All
Ye s®Go To 11
No®Go To 15
11 Ignition Off
Check the Battery Cables for high resistance. (Use Service Manual procedure.)
Did either Battery Circuit have a voltage drop greater than 0.2 volt?All
Ye s®Repair the Battery Circuit for high resistance.
Perform Powertrain Verification Test VER-1A.
No®Go To 12
12 Ignition Off
Attempt to manually rotate the Crankshaft 360 degrees.
Is the Crankshaft able to rotate 360 degrees?All
Ye s®Go To 13
No®Repair the Engine mechanical problem as necessary.
Perform Powertrain Verification Test VER-1A.
13 Ignition Off.
Disconnect the Starter Relay Connector.
Note: Check connectors - Clean/repair as necessary.
With a Voltmeter, measure the Fused B(+) Circuit.
Is the voltage above 11.6 volts?All
Ye s®Go To 14
No®Repair open Fused B(+) Circuit. (check Ignition Switch Fuse in
PDC).
Perform Powertrain Verification Test VER-1A.
298
STARTING
* NO CRANK CONDITION ÐContinued
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TEST ACTION APPLICABILITY
14 Ignition Off.
Disconnect Starter Relay Output Wire from the Starter Solenoid.
Disconnect the Starter Relay Connector.
Note: Check connectors - Clean/repair as necessary.
Using an ohmmeter, measure Starter Relay Output Circuit.
Is the resistance below 5.0 ohms?All
Ye s®Go To 19
No®Repair open Starter Relay Output Circuit.
Perform Powertrain Verification Test VER-1A.
15 Ignition Off
Check the Battery Cables for high resistance. (Use Service Manual procedure.)
Did either Battery Circuit have a voltage drop greater than 0.2 volt?All
Ye s®Repair the Battery Circuit for high resistance.
Perform Powertrain Verification Test VER-1A.
No®Go To 16
16 Ignition Off
Attempt to manually rotate the Crankshaft 360 degrees.
Is the Crankshaft able to rotate 360 degrees?All
Ye s®Go To 17
No®Repair the Engine mechanical problem as necessary.
Perform Powertrain Verification Test VER-1A.
17 Ignition Off.
Disconnect Starter Relay Output Wire from the Starter Solenoid.
Disconnect the Starter Relay Connector.
Note: Check connectors - Clean/repair as necessary.
Using an ohmmeter, measure Starter Relay Output Circuit.
Is the resistance below 5.0 ohms?All
Ye s®Go To 18
No®Repair open Starter Relay Output Circuit.
Perform Powertrain Verification Test VER-1A.
18 Ignition Off.
Disconnect the Starter Relay Connector.
Note: Check connectors - Clean/repair as necessary.
With a Voltmeter, measure the Fused B(+) Circuit.
Is the voltage above 11.6 volts?All
Ye s®Go To 19
No®Repair open Fused B(+) Circuit. (check Ignition Switch Fuse in
PDC).
Perform Powertrain Verification Test VER-1A.
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STARTING
* NO CRANK CONDITION ÐContinued
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Symptom:
* START AND STALL CONDITION
TEST ACTION APPLICABILITY
1Note: Ensure the SKIM has proper communication and that there are no
SKIM DTC's present before continuing.
At this point in the diagnostic test procedure, it is assumed that all of the engine
electrical systems are operating as designed and are not the cause of a start and stall,
or a no start problem.
The following additional items should be checked as possible mechanical problems.
Any one of these items can produce a start and stall, or no start condition; none can
be overlooked as a possible cause.
1. ENGINE VALVE TIMING - must be within specifications
2. ENGINE COMPRESSION - must be within specifications
3. ENGINE EXHAUST SYSTEM - must be free of any restrictions
4. ENGINE PCV SYSTEM - must flow freely
5. FUEL - must be free of contamination
6. ENGINE SECONDARY IGNITION CHECK - must exhibit a normal scope pattern
7. THROTTLE BODY - must be free of any coking conditions.
8. IDLE AIR CONTROL MOTOR - passages must be free of any debris or carbon.
Always look for any Technical Service Bulletins that may relate to this condition.All
Test Complete.
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STARTING
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