2001 CHRYSLER VOYAGER Service Manual

oil reset dashboard warning lights change key battery wiring diagram infotainment coolant reservoir

Page 1353 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
2 Turn the ignition off.
Disconnect the MAF Sensor harness connector.
Disconnect the ECM harness connectors.
Remove the ECM/PCM Relay from the IPM.
Connect a jumper wire betw

TEST ACTION APPLICABILITY
2 Turn the ignition off.
Disconnect the MAF Sensor harness connector.
Disconnect the ECM harness connectors.
Remove the ECM/PCM Relay from the IPM.
Connect a jumper wire between cavity 30 and cavity 87 of the ECM/PCM Relay
connector.
Turn the ignition on.
Measure the voltage on the Sensor Reference Voltage A and MAF 5-Volt Supply
circuits.
Is the voltage above 1.0 volt on either circuit?All
Ye s®Repair the Sensor Reference Voltage A or MAF 5-Volt Supply
circuit that measured above 1.0 volt for a short to voltage.
Perform ROAD TEST VERIFICATION - VER-2.
No®Go To 3
NOTE: Remove the jumper wire and reinstall the ECM/PCM Relay.
3 Turn the ignition off.
Disconnect the Boost Pressure Sensor harness connector.
Disconnect the A/C Pressure Sensor harness connector.
Disconnect the Engine Oil Pressure Sensor harness connector.
Disconnect the ECM harness connectors.
Remove the ECM/PCM Relay from the IPM.
Connect a jumper wire between cavity 30 and cavity 87 of the ECM/PCM Relay
connector.
Turn the ignition on.
Measure the voltage on the Sensor Reference Voltage B, Boost Pressure Sensor 5-Volt
Supply, A/C Pressure Sensor 5-Volt Supply and Engine Oil Pressure Sensor 5-Volt
Supply circuits.
Is the voltage above 1.0 volt on any of the circuits?All
Ye s®Repair the Sensor Reference Voltage B or the 5-Volt Supply circuit
that measured above 1.0 volt for a short to voltage.
Perform ROAD TEST VERIFICATION - VER-2.
No®Go To 4
NOTE: Remove the jumper wire and reinstall the ECM/PCM Relay.
4 Turn the ignition off.
Disconnect the Fuel Pressure Sensor harness connector.
Disconnect the ECM harness connectors.
Remove the ECM/PCM Relay from the IPM.
Connect a jumper wire between cavity 30 and cavity 87 of the ECM/PCM Relay
connector.
Turn the ignition on.
Measure the voltage on the Fuel Pressure Sensor 5-Volt Supply circuit.
Is the voltage below 1.0 volt?All
Ye s®Go To 5
No®Repair the Fuel Pressure Sensor 5-Volt Supply circuit for a short
to voltage.
Perform ROAD TEST VERIFICATION - VER-2.
NOTE: Remove the jumper wire and reinstall the ECM/PCM Relay.
134
DRIVEABILITY - DIESEL
P0641-SENSOR REFERENCE VOLTAGE A CKT VOLTAGE TOO HIGH Ð
Continued

Page 1354 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
5 Turn the ignition off.
Disconnect the Accelerator Pedal Position Sensor harness connector.
Disconnect the ECM harness connectors.
Remove the ECM/PCM Relay from the IPM.
Con

Page 1355 of 4284

CHRYSLER VOYAGER 2001 Service Manual Symptom List:
P0641-SENSOR REFERENCE VOLTAGE A CKT VOLTAGE TOO LOW
P0651-SENSOR REFERENCE VOLTAGE B CKT VOLTAGE TOO LOW
Test Note: All symptoms listed above are diagnosed using the same tests.
The tit

Page 1356 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
2 Turn the ignition on.
With the DRBIIItin Sensors, monitor the MAF, Oil Pressure, Boost Pressure, A/C
Pressure, APP and Fuel Pressure Sensors.
NOTE: If any sensor reading is

TEST ACTION APPLICABILITY
2 Turn the ignition on.
With the DRBIIItin Sensors, monitor the MAF, Oil Pressure, Boost Pressure, A/C
Pressure, APP and Fuel Pressure Sensors.
NOTE: If any sensor reading is above zero before disconnecting, it is not
necessary to disconnect it for this test.
One at a time while monitoring the DRB sensor readings, disconnect the MAF, Oil
Pressure, Boost Pressure, A/C Pressure, APP and Fuel Pressure Sensor harness
connectors.
NOTE: If one of the sensors is shorted to ground internally, disconnecting it
will cause the voltage reading on the DRB to rise for all sensors.
Did the DRB sensor voltage readings rise?All
Ye s®Replace the Sensor that, when disconnected, caused the DRB
sensor readings to rise.
Perform ROAD TEST VERIFICATION - VER-2.
No®Go To 3
3 Turn the ignition off.
Disconnect the ECM harness connectors.
Disconnect the MAF Sensor harness connector.
Measure the resistance between ground and the Sensor Reference Voltage A circuit,
then ground and the MAF Sensor 5-Volt Supply circuit.
Disconnect the Boost Pressure Sensor, Engine Oil Pressure Sensor, and A/C Pressure
Sensor harness connectors.
Measure the resistance between ground and the Sensor Reference Voltage B circuit,
then ground and the 5-Volt Supply circuits to the Boost Pressure Sensor, A/C
Pressure Sensor and Engine Oil Pressure Sensor.
Is the resistance above 100k ohms for all of the measurements?All
Ye s®Go To 4
No®Repair the Sensor Reference Voltage or 5-Volt Supply circuit that
measured less than 100k ohms for a short to ground.
Perform ROAD TEST VERIFICATION - VER-2.
4 Turn the ignition off.
Disconnect the ECM harness connectors.
Disconnect the MAF Sensor harness connector.
Measure the resistance between the Sensor Reference Voltage A circuit and the MAF
Sensor Ground circuit.
Disconnect the Boost Pressure Sensor, Engine Oil Pressure Sensor, and A/C Pressure
Sensor harness connectors.
Measure the resistance between the Sensor Reference Voltage B circuit and the Boost
Pressure Sensor Ground circuit, then the A/C Pressure Sensor Ground circuit, and
finally the Engine Oil Pressure Sensor Ground circuit.
Is the resistance above 100k ohms for all measurements?All
Ye s®Go To 5
No®Repair the Sensor Reference Voltage or 5-Volt Supply circuit that
measured less than 100k ohms for a short to the Sensor Ground
circuit.
Perform ROAD TEST VERIFICATION - VER-2.
137
DRIVEABILITY - DIESEL
P0641-SENSOR REFERENCE VOLTAGE A CKT VOLTAGE TOO LOW Ð
Continued

Page 1357 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
5 Turn the ignition off.
Disconnect the ECM harness connectors.
Disconnect the Fuel Pressure Sensor harness connector.
Measure the resistance between ground and the Fuel Pres

TEST ACTION APPLICABILITY
5 Turn the ignition off.
Disconnect the ECM harness connectors.
Disconnect the Fuel Pressure Sensor harness connector.
Measure the resistance between ground and the Fuel Pressure Sensor 5-Volt Supply
circuit.
Disconnect the Accelerator Pedal Position Sensor harness connector.
Measure the resistance between ground and the Accelerator Pedal Position Sensor
5-Volt Supply circuit.
Is the resistance above 100k ohms for each measurement?All
Ye s®Go To 6
No®Repair the 5-Volt Supply circuit(s) that measured less than 100k
ohms for a short to ground.
Perform ROAD TEST VERIFICATION - VER-2.
6 Turn the ignition off.
Disconnect the ECM harness connectors.
Disconnect the Fuel Pressure Sensor harness connector.
Measure the resistance between the Fuel Pressure Sensor 5-Volt Supply circuit and
the Sensor Ground circuit.
Disconnect the Accelerator Pedal Position Sensor harness connector.
Measure the resistance between the Accelerator Pedal Position Sensor 5-Volt Supply
circuit and the Sensor Ground circuit.
Is the resistance above 100k ohms for each measurement?All
Ye s®Go To 7
No®Repair the 5-Volt Supply circuit(s) that measured less than 100k
ohms for a short to the Sensor Ground circuit.
Perform ROAD TEST VERIFICATION - VER-2.
7 If there are no possible causes remaining, view repair. All
Repair
Replace and program the Engine Control Module in accordance
with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
8WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
NOTE: The conditions that set the DTC are not present at this time. The
following list may help in identifying the intermittent condition.
With the engine running at normal operating temperature, monitor the DRB
parameters related to the DTC while wiggling the wiring harness. Look for param-
eter values to change and/or a DTC to set.
Review the DTC When Monitored and Set Conditions. If possible, try to duplicate the
conditions under which the DTC was set.
Refer to any Technical Service Bulletins (TSB) that may apply.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or
partially broken wires.
Visually inspect the related wiring harness connectors. Look for broken, bent, pushed
out, or corroded terminals.
Were any of the above conditions present?All
Ye s®Repair as necessary.
Perform ROAD TEST VERIFICATION - VER-2.
No®Test Complete.
138
DRIVEABILITY - DIESEL
P0641-SENSOR REFERENCE VOLTAGE A CKT VOLTAGE TOO LOW Ð
Continued

Page 1358 of 4284

CHRYSLER VOYAGER 2001 Service Manual Symptom:
P0645-A/C CLUTCH RELAY CIRCUIT OPEN CIRCUIT
When Monitored and Set Condition:
P0645-A/C CLUTCH RELAY CIRCUIT OPEN CIRCUIT
When Monitored: With the ignition on.
Set Condition: The ECM detects

Page 1359 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
3WARNING: KEEP CLEAR OF THE ENGINES MOVING PARTS.
NOTE: The conditions that set the DTC are not present at this time. The
following list may help in identifying the intermit

TEST ACTION APPLICABILITY
3WARNING: KEEP CLEAR OF THE ENGINE'S MOVING PARTS.
NOTE: The conditions that set the DTC are not present at this time. The
following list may help in identifying the intermittent condition.
With the engine running at normal operating temperature, monitor the DRB
parameters related to the DTC while wiggling the wiring harness. Look for param-
eter values to change and/or a DTC to set.
Review the DRB Freeze Frame information. If possible, try to duplicate the
conditions under which the DTC was set.
Refer to any Technical Service Bulletins (TSB) that may apply.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or
partially broken wires.
Visually inspect the related wiring harness connectors. Look for broken, bent, pushed
out, or corroded terminals.
Were any of the above conditions present?All
Ye s®Repair as necessary.
Perform ROAD TEST VERIFICATION - VER-2.
No®Test Complete.
4 Turn the ignition off.
Remove the A/C Clutch Relay from the IPM.
Turn the ignition on.
Using a 12-volt test light connected to ground, probe the Fused Ignition Switch
circuit in the IPM.
Does the test light illuminate?All
Ye s®Go To 5
No®Go To 10
5 Turn the ignition off.
Remove the A/C Clutch Relay from the IPM.
Turn the ignition on.
Using a 12-volt test light connected to 12-volts, probe the A/C Clutch Relay Control
circuit in the IPM.
With the DRBIIIt, actuate the A/C Clutch Relay.
Does the test light cycle on and off?All
Ye s®Replace the A/C Clutch Relay.
Perform ROAD TEST VERIFICATION - VER-2.
No®Go To 6
6 Turn the ignition off.
Disconnect the Intelligent Power Module C3 harness connector.
Turn the ignition on.
Using a 12-volt test light connected to 12-volts, probe the A/C Clutch Relay Control
circuit in the IPM harness connector.
With the DRBIIIt, actuate the A/C Clutch Relay.
Does the test light flash on and off?All
Ye s®Replace the IPM Fused & Relay Center.
Perform ROAD TEST VERIFICATION - VER-2.
No®Go To 7
140
DRIVEABILITY - DIESEL
P0645-A/C CLUTCH RELAY CIRCUIT OPEN CIRCUIT ÐContinued

Page 1360 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
7 Turn the ignition off.
Disconnect the Intelligent Power Module C3 harness connector.
Disconnect the ECM harness connector.
Measure the resistance of the A/C Clutch Relay Co

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