2001 CHRYSLER VOYAGER Service Manual

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Page 4001 of 4284

CHRYSLER VOYAGER 2001 Service Manual Symptom:
P1486-EVAP LEAK MONITOR PINCHED HOSE FOUND
When Monitored and Set Condition:
P1486-EVAP LEAK MONITOR PINCHED HOSE FOUND
When Monitored: Immediately after a cold start, with battery/ambient te

Page 4002 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
2 To continue testing you will need Miller Tools #6872A Evap System Pressure Pump
and #8382 Gas Cap Tester Adapter.
WARNING: The test equipment is designed to be used to pres

TEST ACTION APPLICABILITY
2 To continue testing you will need Miller Tools #6872A Evap System Pressure Pump
and #8382 Gas Cap Tester Adapter.
WARNING: The test equipment is designed to be used to pressurize the
vehicles Evaporative System only. Using the equipment in a manner for
which it was not designed could be harmful.
Warning: Keep lighted cigarettes, sparks, flames, and other ignition sources
away from the test area to prevent the ignition of explosive gases. Keep the
test area well ventilated.
Note: The fuel tank should have between 20% & 80% of full to properly test
the Evap system.
Attach the power source red clip of Miller Tool #6872A to Battery (+) and the ground
black clip to Battery (-).
Perform the Evaporative System Pressure Pump self test that is specified on the
tester cover.
Remove gas cap and install Miller Tool #8382 on vehicle. Install gas cap to Miller Tool
#8382. Attach the pressure supply hose from Miller Tool #6872A to the fitting on
#8382.
Disconnect the vacuum supply hose at the Leak Detection Pump. Connect and apply
a continuous vacuum supply (i.e. 209Hg) to the Leak Detection Pump. A vacuum
pump such as an A/C recovery unit works well.
Turn the ignition on.
With the DRBIIItin System Tests, select Leak Detect Pump Test. Read instructions
and then press Enter. Select: #3 - HOLD PSI.
On Miller Tool #6872A, set the Pressure/Hold switch to Open and set the Vent switch
to Closed. Turn the pump timer On and watch the gauge.
When the gauge pressure reaches 149H2O, turn the Pressure/Hold Valve to Closed.
Turn the pump timer off.
Disconnect the hose at the EVAP Canister that goes to the Fuel Tank.
Did the pressure drop when the hose was disconnected?All
Ye s®Go To 3
No®Repair obstruction in the EVAP system between the EVAP
Canister and the fuel tank.
Perform POWERTRAIN VERIFICATION TEST VER - 6.
3Note: All previously disconnected hose(s) reconnected.
Re-pressurize the EVAP System. On Miller Tool #6872A, set the Pressure/Hold
switch to Open and set the Vent switch to Closed. Turn the pump timer On and watch
the gauge.
When the gauge pressure reaches 149H2O, turn the Pressure/Hold Valve to Closed.
Turn the pump timer off.
Disconnect the LDP Pressure hose at the EVAP Canister. The LDP Pressure hose is
the hose that connects the Evap Canister to the Leak Detection Pump.
Did the pressure drop when the hose was disconnected?All
Ye s®Go To 4
No®Replace the EVAP Canister.
Perform POWERTRAIN VERIFICATION TEST VER - 6.
208
DRIVEABILITY - GAS
P1486-EVAP LEAK MONITOR PINCHED HOSE FOUND ÐContinued

Page 4003 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
4Note: All previously disconnected hose(s) reconnected.
Re-pressurize the EVAP System. On Miller Tool #6872A, set the Pressure/Hold
switch to Open and set the Vent switch to

TEST ACTION APPLICABILITY
4Note: All previously disconnected hose(s) reconnected.
Re-pressurize the EVAP System. On Miller Tool #6872A, set the Pressure/Hold
switch to Open and set the Vent switch to Closed. Turn the pump timer On and watch
the gauge.
When the gauge pressure reaches 149H2O, turn the Pressure/Hold Valve to Closed.
Turn the pump timer off.
Disconnect the EVAP hoses at the Purge Solenoid.
Did the pressure drop when the hose was disconnected?All
Ye s®Go To 5
No®Repair or replace hose/tube as necessary.
Perform POWERTRAIN VERIFICATION TEST VER - 6.
5 Disconnect and remove the LDP pressure hose. The LDP pressure hose is the hose
that connects the EVAP Canister to the Leak Detection Pump.
Inspect the LDP pressure hose for any obstructions or physical damage.
Is the LDP pressure hose free from defects?All
Ye s®Replace the Leak Detection Pump.
Perform POWERTRAIN VERIFICATION TEST VER - 6.
No®Repair/replace hose as necessary.
Perform POWERTRAIN VERIFICATION TEST VER - 6.
6 At this time, the conditions required to set the DTC are not present.
Note: Use the Freeze Frame Data to help you duplicate the conditions that
set the DTC. Pay particular attention to the DTC set conditions, such as,
VSS, MAP, ECT, and Load.
Note: A thorough visual inspection of the Evap system hoses, tubes, and
connections may save time in your diagnosis. Look for any physical damage
or signs of wetness at connections. The strong smell of fuel vapors may aid
diagnosis also.
Note: Refer to any Technical Service Bulletins (TSB's) that may apply.
With the DRBIIItin System Tests, perform the LDP Monitor Test. This will force the
PCM to run the LDP Monitor. If the monitor fails, further diagnosis is required to
find faulty component. If the monitor passes, the condition is not present at this time.
Were any problems found?All
Ye s®Repair as necessary.
Perform POWERTRAIN VERIFICATION TEST VER - 6.
No®Test Complete.
209
DRIVEABILITY - GAS
P1486-EVAP LEAK MONITOR PINCHED HOSE FOUND ÐContinued

Page 4004 of 4284

CHRYSLER VOYAGER 2001 Service Manual Symptom:
P1491-RAD FAN CONTROL RELAY CIRCUIT
When Monitored and Set Condition:
P1491-RAD FAN CONTROL RELAY CIRCUIT
When Monitored: With the ignition on. Battery voltage greater than 10 volts.
Set Cond

Page 4005 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
3WARNING: 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: Th

TEST ACTION APPLICABILITY
3WARNING: 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 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 POWERTRAIN VERIFICATION TEST VER - 5.
No®Test Complete.
4 Turn the ignition off.
Disconnect the Radiator Fan Relay harness connector.
Using a 12-volt test light connected to 12-volts, probe the Ground circuit in the
Radiator Fan Relay harness connector.
Does the test light illuminate?All
Ye s®Go To 5
No®Repair the Ground circuit for an open.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
5NOTE: Inspect the Radiator Fan fuse located in the IPM.
Turn the ignition off.
Disconnect the Radiator Fan Relay harness connector.
Measure the voltage of the Fused B+ Output circuit in the Radiator Fan Relay
harness connector.
Is the voltage above 11.0 volts?All
Ye s®Go To 6
No®Repair the Fused B+ circuit. Check and replace any open fuses.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
6NOTE: Ensure the Radiator Fan Relay harness connector is connected.
Turn the ignition off.
Disconnect the PCM harness connector.
Turn the ignition on.
Using a jumper wire, momentarily jumper the Radiator Fan Relay Control circuit to
ground.
Did the Radiator Fans operate?All
Ye s®Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No®Go To 7
211
DRIVEABILITY - GAS
P1491-RAD FAN CONTROL RELAY CIRCUIT ÐContinued

Page 4006 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
7 Turn the ignition off.
Disconnect the Radiator Fan Relay harness connector.
Disconnect the PCM harness connector.
Measure the resistance of the Radiator Fan Relay Control c

Page 4007 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
11 Turn the ignition off.
Disconnect the Radiator Fan Relay harness connector.
Disconnect the IPM C2 harness connector.
Measure the resistance of the Radiator Fan Relay Contr

Page 4008 of 4284

CHRYSLER VOYAGER 2001 Service Manual Symptom:
P1494-LEAK DETECT PUMP SW OR MECHANICAL FAULT
When Monitored and Set Condition:
P1494-LEAK DETECT PUMP SW OR MECHANICAL FAULT
When Monitored: Immediately after a cold start, with battery/ambi

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