2001 CHRYSLER VOYAGER Service Manual

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Page 1401 of 4284

CHRYSLER VOYAGER 2001 Service Manual Symptom:
*CHECKING THE BOOST PRESSURE SENSOR CALIBRATION
POSSIBLE CAUSES
TURBOCHARGER BOOST PRESSURE SENSOR CALIBRATION
TEST ACTION APPLICABILITY
1 Allow the engine to idle.
With the DRB, select Engin

Page 1402 of 4284

CHRYSLER VOYAGER 2001 Service Manual Symptom:
*CHECKING THE ECM POWER AND GROUND CIRCUITS
POSSIBLE CAUSES
ECM GROUND CIRCUIT(S) OPEN
ECM/PCM RELAY OUTPUT CIRCUIT(S) OPEN
FUSED ECM/PCM RELAY BATTERY SUPPLY CIRCUIT OPEN
FUSED IGNITION SWIT

Page 1403 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
4 Turn the ignition off.
Disconnect the ECM harness connectors.
Remove the ECM/PCM Relay from the IPM.
Connect a jumper wire between cavity 30 and cavity 87 in the ECM/PCM Re

Page 1404 of 4284

CHRYSLER VOYAGER 2001 Service Manual Symptom:
*CHECKING THE EGR SYSTEM
POSSIBLE CAUSES
ECM/PCM RELAY OUTPUT CIRCUIT OPEN
EGR SOLENOID CONTROL CIRCUIT OPEN
EGR VALVE
VACUUM SUPPLY HOSE
TEST ACTION APPLICABILITY
1 Disconnect the Vacuum Sup

Page 1405 of 4284

CHRYSLER VOYAGER 2001 Service Manual Symptom:
*CHECKING THE ELECTRIC RADIATOR FAN OPERATION
POSSIBLE CAUSES
ACTUATE THE HIGH AND LOW SPEED RADIATOR FAN WITH THE DRB
CHECK FOR RADIATOR FAN RELAY CONTROL DTCS
RADIATOR FAN RELAY NO. 1 OUTPU

Page 1406 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, read DTCs.
Are any Radiator Fan DTCs present?All
Ye s®Refer to symptom list for problems related to Radiator Fan
control.
Perform R

Page 1407 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
6 Turn the ignition on.
With the DRB, actuate the Low Speed Rad Fan and observe the Radiator Fans.
NOTE: Both Radiator Fans should operate at low speed.
Did both Radiator Fan

Page 1408 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
10 Turn the ignition off.
Disconnect the Radiator Fan Relay No. 2 harness connector.
Disconnect the Radiator Fan No. 2 harness connector.
Measure the resistance of the Radiat

TEST ACTION APPLICABILITY
10 Turn the ignition off.
Disconnect the Radiator Fan Relay No. 2 harness connector.
Disconnect the Radiator Fan No. 2 harness connector.
Measure the resistance of the Radiator Fan Relay No. 2 and No. 3 Common Output
circuit from Radiator Fan Relay No. 2.
Is the resistance below 5.0 ohms?All
Ye s®Test Complete.
No®Repair the Radiator Fan Relay No. 2 and No. 3 Common Output
circuit from Radiator Fan Relay No. 2 for an open.
Perform ROAD TEST VERIFICATION - VER-2.
11 Turn the ignition off.
Disconnect the Radiator Fan Relay No. 3 harness connector.
Using a 12-volt test light connected to ground, check the Fused B+ circuit.
Did the test light illuminate brightly?All
Ye s®Go To 12
No®Repair the Radiator Fan Relay No. 3 Fused B+ circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
12 Turn the ignition off.
Install a substitute relay in place of Radiator Fan Relay No. 3.
Turn the ignition on.
With the DRB, actuate the High Speed Fan Relay and then actuate the Low Speed
Fan Relay.
Does Radiator Fan No. 2 cycle on and off and then both fans cycle on and off when
requested?All
Ye s®Replace Radiator Fan Relay No. 3.
Perform ROAD TEST VERIFICATION - VER-2.
No®Go To 13
13 Turn the ignition off.
Disconnect the Radiator Fan Relay No. 3 harness connector.
Disconnect the Radiator Fan No. 2 harness connector.
Using a 12-volt test light connected to 12-volts, check the Radiator Fan Relay No. 3
Ground circuit at the Radiator Fan Relay No. 3 harness connector.
Did the test light illuminate brightly?All
Ye s®Go To 14
No®Repair the Radiator Fan Relay No. 3 Ground circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
14 Turn the ignition off.
Disconnect the Radiator Fan Relay No. 3 harness connector.
Disconnect the ECM harness connectors.
Measure the resistance of the High Speed Radiator Fan Dual Relay Control circuit.
Is the resistance below 5.0 ohms?All
Ye s®Test Complete.
No®Repair the High Speed Radiator Fan Dual Relay Control circuit
for an open.
Perform ROAD TEST VERIFICATION - VER-2.
189
DRIVEABILITY - DIESEL
*CHECKING THE ELECTRIC RADIATOR FAN OPERATION ÐContinued

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