check engine CHRYSLER VOYAGER 2001 Service Manual

Symptom:
*ENGINE CRANKS DOES NOT START
POSSIBLE CAUSES
FUEL PUMP RELAY
NO START PRE-TEST
POWERTRAIN FUSES OPEN
FUEL PRESSURE OUT OF SPECS
RESTRICTED FUEL SUPPLY LINE
FUEL PUMP INLET STRAINER PLUGGED
FUEL PUMP MODULE
FUEL PUMP CAPACITY (VOLUME) OUT OF SPECS
FUEL PUMP RELAY FUSED B+ CIRCUIT
OTHER POSSIBLE CAUSES FOR NO START
FUEL PUMP RELAY OUTPUT CIRCUIT OPEN
FUEL PUMP GROUND CIRCUIT OPEN/HIGH RESISTANCE
IPM FUSE & RELAY CENTER
FUEL PUMP MODULE
TEST ACTION APPLICABILITY
1Note: The following list of items must be checked before continuing with
any no start tests.
The battery must be fully charged and in good condition. A low charged battery may
produce invalid test results. If the battery is low, charge the battery and then attempt
to start the vehicle by cranking the engine for 15 seconds, 3 consecutive times.
This will allow any DTC's to set that may have been erased due to a dead battery.
Ensure the Powers and Ground to the PCM are ok.
Make sure the PCM communicates with the DRB and that there are no DTC's stored
in the PCM memory. If the PCM reports a No Response condition, refer to the
Communication category for the proper tests.
Read the PCM DTC's with the DRB. If any DTC's are present, they must be repaired
before continuing with any other No Start diagnostic tests. Refer to the Symptom list
for the related P-code that is reported by the PCM.
Ensure that the PCI bus is functional. Attempt to communicate with the Instrument
Cluster and SKIM, If you are unable to establish communicate refer to the
Communication category for the proper symptoms.
The Sentry Key Immobilizer System must be operating properly. Check for proper
communication with the DRB and check for DTC's that may be stored in the Sentry
Key Immobilizer Module (SKIM). repair the DTC(s) before continuing.
If no DTC's are found, using the DRB select Clear PCM (Batt Disconnect).
Crank the engine several times. Using the DRB, read DTC's. If a DTC is present
perform the DTC diagnostics before continuing.
Were any problems found?All
Ye s®Repair as necessary.
Perform POWERTRAIN VERIFICATION TEST VER-1.
No®Go To 2
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STARTING

TEST ACTION APPLICABILITY
2 Check for any open fuses in the IPM that may be related to the No Start condition.
Are any of the fuses open?All
Ye s®Using the wiring diagram/schematic as a guide, inspect the
wiring and connectors, repair as necessary. Replace the Fuse.
Perform POWERTRAIN VERIFICATION TEST VER-1.
No®Go To 3
3 Turn the ignition on.
With the DRBIIIt, actuate the ASD Fuel System test.
Note: It may be necessary to use a mechanics stethoscope in the next step.
Listen for fuel pump operation at the fuel tank.
Does the Fuel Pump operate?All
Ye s®Go To 4
No®Go To 9
Caution: Stop All Actuations.
4 Turn the ignition off.
WARNING: The fuel system is under a constant pressure even with the
engine off. Before testing or servicing any fuel system hose, fitting or line,
the fuel system pressure must be released.
Install a fuel pressure gauge to the fuel rail test port.
Turn the ignition on.
With the DRBIIIt, actuate the ASD Fuel System test and observe the fuel pressure
gauge.
NOTE: Fuel pressure specification is 400 kPa +/- 34 kPa (58 psi +/- 5 psi).
Choose a conclusion that best matches your fuel pressure reading.All
Below Specification
Go To 5
Within Specification
Go To 7
Above Specification
Replace the fuel filter/fuel pressure regulator.
Perform POWERTRAIN VERIFICATION TEST VER-1.
Caution: Stop All Actuations.
254
STARTING
*ENGINE CRANKS DOES NOT START ÐContinued

TEST ACTION APPLICABILITY
5 Turn the ignition off.
WARNING: The fuel system is under a constant pressure even with the
engine off. Before testing or servicing any fuel system hose, fitting or line,
the fuel system pressure must be released.
Raise vehicle on hoist, and disconnect the fuel pressure line at the fuel pump module.
Install special 5/169fuel line adapter tool #6539 between disconnected fuel line and
the fuel pump module.
Attach a fuel pressure test gauge to the9T9fitting on tool #6539.
Turn the ignition on.
With the DRBIIIt, actuate the ASD Fuel System test and observe the fuel pressure
gauge.
NOTE: Fuel pressure specification is 400 KPa +/- 34 KPa (58 psi +/- 5 psi).
Is the fuel pressure within specification now?All
Ye s®Repair/replace fuel supply line as necessary.
Perform POWERTRAIN VERIFICATION TEST VER-1.
No®Go To 6
Caution: Stop All Actuations.
6 Turn the ignition off.
WARNING: The fuel system is under a constant pressure even with the
engine off. Before testing or servicing any fuel system hose,fitting or line,
the fuel system pressure must be released.
Remove the Fuel Pump Module and inspect the Fuel Inlet Strainer.
Is the Fuel Inlet Strainer plugged?All
Ye s®Replace the Fuel Pump Inlet Strainer.
Perform POWERTRAIN VERIFICATION TEST VER-1.
No®Replace the Fuel Pump Module.
Perform POWERTRAIN VERIFICATION TEST VER-1.
7Note: The fuel pressure must be within specification before continuing.
Turn the ignition off.
WARNING: The fuel system is under a constant pressure even with the
engine off. Before testing or servicing any fuel system hose, fitting or line,
the fuel system pressure must be released.
Disconnect the fuel supply line at the fuel rail.
Connect fuel line adapter #6539(5/169) or #6631(3/89) to the disconnected fuel supply
line. Insert the other end of the adapter into a graduated container.
Caution: Do not operate the fuel pump for more than 7 seconds in the next
step. Fuel pump module reservoir may run empty and damage to the fuel
pump will result.
Note: Specification: A good fuel pump will deliver at least 1/4 liter (1/2 pint)
of fuel in 7 seconds.
Turn the ignition on.
With the DRBIIIt, actuate the ASD Fuel System test for 7 seconds.
Is the fuel pump capacity within specification?All
Ye s®Go To 8
No®Check for a kinked/damaged fuel supply line between the fuel
tank and fuel rail. If OK, replace the fuel pump module.
Perform POWERTRAIN VERIFICATION TEST VER-1.
Caution: Stop All Actuations.
255
STARTING
*ENGINE CRANKS DOES NOT START ÐContinued

TEST ACTION APPLICABILITY
8 The following items need to be checked as a possible cause for a no start condition.
Refer to any Technical Service Bulletins that may apply to the symptom.
The spark plugs must be free from fuel, oil, coolant and/or any foreign material or
deposits.
The fuel must be free from contamination.
The exhaust may be free from restrictions.
The engine compression must be within specifications.
The engine valve timing must be within specifications.
The engine must be free from vacuum leaks.
Were any of the above conditions found?All
Ye s®Repair as necessary.
Perform POWERTRAIN VERIFICATION TEST VER-1.
No®Test Complete.
9 Turn the ignition off.
Disconnect the fuel pump module harness connector.
Turn the ignition on.
With the DRBIIIt, actuate the ASD Fuel System test.
Using a 12 volt test light connected to ground, probe the Fuel Pump Relay Output
circuit at the Fuel Pump Module harness connector.
Does the test light illuminate brightly?All
Ye s®Go To 10
No®Go To 12
Caution: Stop All Actuations.
10 Turn the ignition off.
Disconnect the Fuel Pump Module harness connector.
Note: Check connectors - It is critical that the connector is free from any
signs of corrosion or deformities - Clean/repair as necessary.
Using a test light connected to battery voltage, probe the Fuel Pump ground circuit
at the Fuel Pump Module harness connector.
Does the test light illuminate brightly?All
Ye s®Go To 11
No®Repair the open/high resistance in the fuel pump ground circuit.
Perform POWERTRAIN VERIFICATION TEST VER-1.
11 If there are no possible causes remaining, view repair. All
Repair
Replace the Fuel Pump Module.
Perform POWERTRAIN VERIFICATION TEST VER-1.
12 Turn the ignition off.
Remove the Fuel Pump Relay from the IPM.
With a 12 volt test light connected to ground, probe the Fuel Pump Relay Fused B+
circuit in the IPM.
Does the test light illuminate?All
Ye s®Go To 13
No®Check for an open Fuel Pump fuse, repair cause of open. If OK,
replace the IPM Fuse & Relay Center.
Perform POWERTRAIN VERIFICATION TEST VER-1.
256
STARTING
*ENGINE CRANKS DOES NOT START ÐContinued

Symptom:
*NO CRANK CONDITION
POSSIBLE CAUSES
REPAIR MECHANICAL CONDITION
TRANSMISSION RANGE SENSOR
BATTERY CIRCUIT RESISTANCE TOO HIGH
IGNITION SWITCH OUTPUT CIRCUIT OPEN
STARTER RELAY CONTROL CIRCUIT OPEN
STARTER RELAY OUTPUT CIRCUIT OPEN
FUSED B(+) CIRCUIT OPEN
STARTER
STARTER MOTOR RELAY
STARTER RELAY
TEST ACTION APPLICABILITY
1WARNING: MAKE SURE THE BATTERY IS DISCONNECTED, THEN WAIT
TWO MINUTES BEFORE PROCEEDING.
Turn the engine over by hand to ensure the engine is not seized.
Is the engine able to turn over?All
Ye s®Go To 2
No®Repair the mechanical condition preventing the starter motor
from cranking.
Perform POWERTRAIN VERIFICATION TEST VER-1.
2 Turn the ignition off.
Disconnect the PCM harness connectors.
Move the Gear selector through all gear positions, from Park to 1st and back.
While moving the gear selector through each gear, measure the resistance between
ground and the P/N Position Switch Sense circuit.
Did the resistance change from above 10.0 ohms to below 10.0 ohms?All
Ye s®Go To 3
No®Replace the Transmission Range Sensor.
Perform POWERTRAIN VERIFICATION TEST VER-1.
3 Turn the ignition off.
Check the Battery Cables for high resistance using the service information proce-
dure.
Did either Battery Cable have a voltage drop greater than 0.2 volt?All
Ye s®Repair the Battery circuit for high resistance.
Perform POWERTRAIN VERIFICATION TEST VER-1.
No®Go To 4
258
STARTING

TEST ACTION APPLICABILITY
6Note: The fuel pressure must be within specification before continuing.
Turn the ignition off.
WARNING: The fuel system is under a constant pressure even with the
engine off. Before testing or servicing any fuel system hose, fitting or line,
the fuel system pressure must be released.
Disconnect the fuel supply line at the fuel rail.
Connect fuel line adapter #6539(5/169) or #6631(3/89) to the disconnected fuel supply
line. Insert the other end of the adapter into a graduated container.
Caution: Do not operate the fuel pump for more than 7 seconds in the next
step. Fuel pump module reservoir may run empty and damage to the fuel
pump will result.
Note: Specification: A good fuel pump will deliver at least 1/4 liter (1/2 pint)
of fuel in 7 seconds.
Turn the ignition on.
With the DRBIIIt, actuate the ASD Fuel System test for 7 seconds.
Is the fuel pump capacity within specification?All
Ye s®Go To 7
No®Check for a kinked/damaged fuel supply line between the fuel
tank and fuel rail. If OK, replace the fuel pump module.
Perform POWERTRAIN VERIFICATION TEST VER-1.
Caution: Stop All Actuations.
7 Turn the ignition on.
With the DRBIIIt, read TPS VOLTS.
While monitoring the DRBIIIt, slowly open and close the Throttle.
Is the voltage change smooth?All
Ye s®Go To 8
No®Replace the Throttle Position Sensor.
Perform POWERTRAIN VERIFICATION TEST VER-1.
8 Turn the ignition on.
With the DRBIIIt, read Throttle Position voltage. Throttle must be against stop.
Is the voltage 0.92 or less with the Throttle closed?All
Ye s®Go To 9
No®Check for a binding throttle condition. If OK, replace the Throttle
Position Sensor.
Perform POWERTRAIN VERIFICATION TEST VER-1.
264
STARTING
*START AND STALL CONDITION ÐContinued

TEST ACTION APPLICABILITY
9Note: For this test to be valid, the thermostat must be operating correctly.
Note: This test works best if performed on a cold engine (cold soaked).
NOTE: If the vehicle was allow to sit over night with no engine start, coolant
temperature should be near ambient temperatures.
Turn the ignition on.
With the DRBIIIt, read the Engine Coolant Temperature value.
Note: If engine coolant temperature is above 82É C (180É F), allow the engine
to cool until 65É C (150É F) is reached.
Start the engine.
During engine warm-up, monitor the Engine Coolant Temperature value. The
temperature value change should be a smooth transition from start up to normal
operating temp 82É C (180É F). The value should reach at least 82É C (180É F).
Did the Engine Temperature value increase smoothly and did it reach at least 82É C
(180É F)?All
Ye s®Go To 10
No®Replace the Engine Coolant Temperature Sensor.
Perform POWERTRAIN VERIFICATION TEST VER-1.
10 The following additional items should be checked as a possible cause for a start and
stall condition.
Refer to any Technical Service Bulletins (TSB's) that may apply to the symptom.
Fuel must be free of contamination.
The exhaust system must be free of any restrictions.
The engine compression must be within specifications.
The engine valve timing must be within specifications.
The engine must be free from vacuum leaks.
The throttle body must be free of carbon buildup and dirt.
Do any of the above conditions exist?All
Ye s®Repair as necessary.
Perform POWERTRAIN VERIFICATION TEST VER-1.
No®Test Complete.
265
STARTING
*START AND STALL CONDITION ÐContinued

VERIFICATION TESTS
31TH TRANSMISSION VERIFICATION TEST - VER 1. APPLICABILITY
1. Connect the DRBIIItto the Data Link Connector (DLC).
2. Reconnect any disconnected components.
3. With the DRBIIIt, erase the PCM DTC's.
4. Check the transmission fluid and adjust if necessary. Refer to the Service information for the
Fluid Fill procedure.
5. Road test the vehicle. With the DRBIIIt, monitor the engine RPM. Make 15 to 20 1-2, 2-3
upshifts. Perform these shifts from a standing start to 45 MPH with a constant throttle opening
of 20 to 25 degrees.
6. Below 25 MPH, make 5 to 8 wide open throttle kickdowns to 1st gear. Allow at least 5 seconds
each in 2nd and 3rd gear between each kickdown.
7. For a specific DTC, drive the vehicle to the Symptom's When Monitored/When Set conditions
to verify the DTC repair.
8. Check for Diagnostic Trouble Codes (DTC's) during the road test. If a DTC sets during the
road test , return to the Symptom list and follow the path.
Were any Trouble Codes set during the road test?All
Ye s®Refer to the Symptom List for appropriate diagnostic tests.
No®Repair is complete.
41TE TRANSMISSION VERIFICATION TEST - VER 1. APPLICABILITY
1. Connect the DRBIIItto the Data Link Connector (DLC).
2. Reconnect any disconnected components.
3. With the DRBIIIt, erase all Transmission DTC's, also erase the PCM DTC's.
4. With the DRBIIIt, display transmission temperature. Start and run the engine until the
transmission temperature is HOT (above 110 deg. F).
5. Check the transmission fluid and adjust if necessary. Refer to the Service information for the
Fluid Fill procedure.
6. NOTE: If the Transmission Control Module or torque converter has been replaced
or if the transmission has been repaired or replaced it is necessary to perform the
DRBIIItQuick Learn Procedure and reset the(Pinion Factor(
7. Road test the vehicle. With the DRBIIIt, monitor the engine RPM. Make 15 to 20 1-2, 2-3,
3-4 upshifts. Perform these shifts from a standing start to 45 MPH with a constant throttle
opening of 20 to 25 degrees.
8. Below 25 MPH, make 5 to 8 wide open throttle kickdowns to 1st gear. Allow at least 5 seconds
each in 2nd and 3rd gear between each kickdown.
9. For a specific DTC, drive the vehicle to the Symptom's When Monitored/When Set conditions
to verify the DTC repair.
10. Check for Diagnostic Trouble Codes (DTC's) during the road test. If a DTC sets during the
road test , return to the Symptom list and follow the path.
11. NOTE: Erase P0700 DTC in the PCM to turn the MIL light off after making
transmission repairs. This will turn the MIL off.
Were any Trouble Codes set during the road test?All
Ye s®Refer to the Symptom List for appropriate diagnostic tests.
No®Repair is complete.
275
VERIFICATION TESTS

POWERTRAIN VERIFICATION TEST VER - 4 APPLICABILITY
1. NOTE: If the PCM has been replaced and the correct VIN and mileage have not
been programmed, a DTC will be set in the ABS Module, Airbag Module and the
SKIM.
2. NOTE: If the vehicle is equipped with a Sentry Key Immobilizer System, Secret
Key data must be updated. Refer to the Service Information for the PCM, SKIM and
the Transponder (ignition key) for programming information.
3. Inspect the vehicle to ensure that all engine components are properly installed and
connected.
4. Connect the DRB to the data link connector and erase all codes.
5. Turn the speed control ON (if equipped, cruise light will be on).
6. Depress and release the SET Switch. If the speed control did not engage, the repair is not
complete. Check for TSBs that pertain to speed control problem and then, if necessary, return
to Symptom List.
7. Depress and hold the RESUME/ACCEL Switch. If the vehicle speed did not increase by at
least 2 mph, the repair is not complete. Check for TSBs that pertain to speed control problem
and then, if necessary, return to Symptom List.
8. Press and hold the COAST switch. The vehicle speed should decrease. If it did not decrease,
the repair is not complete. Check for TSBs that pertain to speed control problem and then, if
necessary, return to Symptom List.
9. Using caution, depress and release the brake pedal. If the speed control did not disengage,
the repair is not complete. Check for TSBs that pertain to speed control problem and then, if
necessary, return to Symptom List.
10. Bring the vehicle speed back up to 35 MPH.
11. Depress the RESUME/ACCEL switch. If the speed control did not resume the previously set
speed, the repair is not complete. Check for TSBs that pertain to speed control problem and
then, if necessary, return to Symptom List.
12. Hold down the SET switch. If the vehicle did not decelerate, the repair is not complete.
Check for TSBs that pertain to speed control problem and then, if necessary, return to
Symptom List.
13. Ensure vehicle speed is greater than 35 mph and release the SET Switch. If vehicle did not
adjust and set a new vehicle speed, the repair is not complete. Check for TSBs that pertain to
speed control problem and then, if necessary, return to Symptom List.
14. Depress and release the CANCEL switch. If the speed control did not disengage, the repair
is not complete. Check for TSBs that pertain to speed control problem and then, if necessary,
return to Symptom List.
15. Bring the vehicle speed back up above 35 mph and engage speed control.
16. Depress the OFF switch to turn OFF, (Cruise light will be off). If the speed control did not
disengage, the repair is not complete. Check for TSBs that pertain to speed control problem and
then, if necessary, return to Symptom List.
17. If the vehicle successfully passed all of the previous tests, the speed control system is now
functioning as designed. The repair is now complete.
Did the Speed Control pass the above test?All
Ye s®Repair is complete.
No®Repair is not complete, refer to appropriate symptom.
278
VERIFICATION TESTS
VERIFICATION TESTS ÐContinued

POWERTRAIN VERIFICATION TEST VER - 5 APPLICABILITY
1. NOTE: If the PCM has been replaced and the correct VIN and mileage have not
been programmed, a DTC will be set in the ABS Module, Airbag Module and the
SKIM.
2. NOTE: If the vehicle is equipped with a Sentry Key Immobilizer System, Secret
Key data must be updated. Refer to the Service Information for the PCM, SKIM and
the Transponder (ignition key) for programming information.
3. Inspect the vehicle to ensure that all engine components are properly installed and
connected. Reassemble and reconnect components as necessary.
4. Connect the DRBIIItto the data link connector.
5. Ensure the fuel tank has at least a quarter tank of fuel. Turn off all accessories.
6. If a Comprehensive Component DTC was repaired, perform steps5-8.IfaMajor OBDII
Monitor DTC was repaired skip those steps and continue verification.
7. After the ignition has been off for at least 10 seconds, restart the vehicle and run 2 minutes.
8. If the Good Trip counter changed to one or more and there are no new DTC's, the repair was
successful and is now complete. Erase DTC's and disconnect the DRBIIIt.
9. If the repaired DTC has reset, the repair is not complete. Check for any related TSB's or flash
updates and return to the Symptom list.
10. If another DTC has set, return to the Symptom List and follow the path specified for that
DTC.
11. With the DRBIIIt, monitor the appropriate pre-test enabling conditions until all conditions
have been met. Once the conditions have been met, switch screen to the appropriate OBDII
monitor, (Audible beeps when the monitor is running).
12. If the monitor ran, and the Good Trip counter changed to one or more, the repair was
successful and is now complete. Erase DTC's and disconnect the DRBIIIt.
13. If the repaired OBDII trouble code has reset or was seen in the monitor while on the road
test, the repair is not complete. Check for any related technical service bulletins or flash
updates and return to Symptom List.
14. If another DTC has set, return to the Symptom List and follow the path specified for that
DTC.
Are any DTCs present?All
Ye s®Repair is not complete, refer to appropriate symptom.
No®Repair is complete.
279
VERIFICATION TESTS
VERIFICATION TESTS ÐContinued