ignition CHRYSLER VOYAGER 2001 Service Manual

TEST ACTION APPLICABILITY
8 Turn the igntion off.
Disconnect the EGR Solenoid harness connector.
Turn the ignition on.
Using a 12 volt Test Light connected to ground, probe the Fused Ignition Switch
Output circuit in the EGR Solenoid harness connector.
Does the 12 volt test light illuminate?All
Ye s®Go To 9
No®Repair the Fused Ignition Switch Output circuit for an open.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
9 Turn the ignition off.
Disconnect the EGR Solenoid harness connector.
Turn the ignition on.
Measure the voltage of the EGR Solenoid Control circuit in the EGR Solenoid
connector.
Is the voltage above 1.0 volts?All
Ye s®Repair the EGR Solenoid Control circuit for a short to voltage.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No®Go To 10
10 Turn the ignition off.
Disconnect the PCM harness connector.
Disconnect the EGR Solenoid harness connector.
Measure the resistance of the EGR Solenoid Control circuit between the PCM
harness connector and the EGR Solenoid harness connector.
Is the resistance below 5.0 ohms?All
Ye s®Go To 11
No®Repair the EGR solenoid control circuit for an open.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
11 Turn the ignition off.
Disconnect the EGR Solenoid harness connector.
Using a 12-volt test light connected to 12-volts, probe the EGR Solenoid Control
circuit in the EGR Solenoid harness connector.
Turn the ignition on.
With the DRBIIIt, actuate the EGR Solenoid.
Observe the test light.
Does the test light flash on and off.All
Ye s®Inspect the EGR Solenoid Back Pressure hose and tube for
obstructions or damage. If OK, replace the EGR Solenoid.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No®Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
126
DRIVEABILITY - GAS
P0401 - EGR SYSTEM FAILURE ÐContinued

Symptom:
P0403 - EGR SOLENOID CIRCUIT
When Monitored and Set Condition:
P0403 - EGR SOLENOID CIRCUIT
When Monitored: Engine running. Battery voltage greater than 10 volts.
Set Condition: The EGR solenoid control circuit is not in the expected state when
requested to operate by the PCM.
POSSIBLE CAUSES
INTERMITTENT CONDITION
EGR SOLENOID
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
EGR SOLENOID CONTROL CKT SHORTED TO VOLTAGE
EGR SOLENOID CONTROL CKT SHORT TO GND
EGR SOLENOID CONTROL CKT OPEN
PCM
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, read DTC's.
Is the Good Trip displayed and equal to zero?All
Ye s®Go To 2
No®Go To 8
2 Turn the ignition off.
Disconnect the EGR Solenoid harness connector.
Turn the ignition on.
Turn all accessories off.
Using a 12 volt Test Light connected to the Fused Ignition Switch Output circuit,
probe the EGR Solenoid Control circuit.
With the DRB, actuate the EGR solenoid.
Does the 12 volt test light flash on and off?All
Ye s®Inspect the EGR Valve Back Pressure hose and tube for obstruc-
tions or damage. If OK, replace the EGR Solenoid.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No®Go To 3
128
DRIVEABILITY - GAS

TEST ACTION APPLICABILITY
3 Turn the igntion off.
Disconnect the EGR Solenoid harness connector.
Turn the ignition on.
Using a 12 volt Test Light connected to ground, probe the Fused Ignition Switch
Output circuit in the EGR Solenoid harness connector.
Does the 12 volt test light illuminate?All
Ye s®Go To 4
No®Repair the Fused Ignition Switch Output circuit for an open.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
4 Turn the ignition off.
Disconnect the EGR Solenoid harness connector.
Turn the ignition on.
Measure the voltage of the EGR Solenoid Control circuit in the EGR Solenoid
connector.
Is the voltage above 1.0 volt?All
Ye s®Repair the EGR Solenoid Control circuit for a short to voltage.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No®Go To 5
5 Turn the ignition off.
Disconnect the PCM harness connector.
Disconnect the EGR Solenoid harness connector.
Measure the resistance of the EGR Solenoid Control circuit in the EGR Solenoid
harness connector to ground.
Is the resistance below 5.0 ohms?All
Ye s®Repair the EGR Solenoid Control circuirt for a short to ground.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No®Go To 6
6 Turn the ignition off.
Disconnect the PCM harness connector.
Disconnect the EGR Solenoid harness connector.
Measure the resistance of the EGR Solenoid Control circuit between the PCM
harness connector and the EGR Solenoid harness connector.
Is the resistance below 5.0 ohms?All
Ye s®Go To 7
No®Repair the EGR Solenoid Control circuit for an open.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
7 If there are no possible causes remaining, view repair. All
Repair
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
129
DRIVEABILITY - GAS
P0403 - EGR SOLENOID CIRCUIT ÐContinued

Symptom:
P0420-1/1 CATALYTIC CONVERTER EFFICIENCY
When Monitored and Set Condition:
P0420-1/1 CATALYTIC CONVERTER EFFICIENCY
When Monitored: After engine warm up to 70ÉC (158ÉF), 180 seconds of open throttle
operation, at a speed greater than 18 mph and less than 55 mph, with the engine at
1200-1700 rpm and MAP vacuum between 15.0 and 21.0 inches of mercury (Hg).
Set Condition: As catalyst efficiency deteriorates, the switch rate of the downstream O2
sensor approaches that of the upstream O2 sensor. If at any point during the test the
switch ratio reaches a predetermined value a counter is incremented by one.
POSSIBLE CAUSES
INTERMITTENT CONDITION
VISUALLY INSPECT CATALYTIC CONVERTER
EXHAUST LEAK
ENGINE MECHANICAL CONDITION
AGING O2 SENSOR
CATALYTIC CONVERTER
TEST ACTION APPLICABILITY
1NOTE: If a O2 Sensor DTC(s) set along with the Catalytic Converter
Efficiency DTC diagnose the O2 Sensor DTC(s) before continuing.
NOTE: Check for contaminates that may have damaged the O2 Sensor and
Catalytic Converter: contaminated fuel, unapproved silicone, oil and cool-
ant, repair necessary.
Turn the ignition on.
With the DRBIIIt, read DTC's.
Is the Good Trip displayed and equal to zero?All
Ye s®Go To 2
No®Go To 7
2 Inspect the Catalytic Converter for the following damage.
Damage Catalytic Converter, dent and holes.
Severe discoloration caused by overheating the Catalytic Converter.
Catalytic Converter broke internally.
Leaking Catalytic Converter.
Were any problems found?All
Ye s®Replace the Catalytic Converter. Repair the condition that may
have caused the failure.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No®Go To 3
131
DRIVEABILITY - GAS

Symptom:
P0441-EVAP PURGE FLOW MONITOR
When Monitored and Set Condition:
P0441-EVAP PURGE FLOW MONITOR
When Monitored: With engine temperature greater than 71ÉC (160ÉF), fuel control in
closed loop, engine idling for 200 seconds, no low fuel, MAP less than 23.6 inches mercury
and barometric altitude less than 8,000 feet.
Set Condition: After having passed the Leak Detection Pump (LDP) test, no air flow
through the evaporative system is detected by the evap monitor.
POSSIBLE CAUSES
INTERMITTENT CONDITION
EVAP PURGE SOLENOID LEAKS/STUCK OPEN
EVAP PURGE SOLENOID STUCK CLOSED
EVAP PURGE SOLENOID VACUUM SUPPLY
EVAP PURGE HOSE SOLENOID TO CANISTER
EVAP PURGE HOSE CANISTER TO FUEL TANK
EVAP CANISTER
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, read DTC's.
Is the Good Trip Counter displayed and equal to zero?All
Ye s®Go To 2
No®Go To 8
2NOTE: After disconnecting the Evap Purge Solenoid vacuum connections,
inspect the lines and solenoid for any signs of contamination from the EVAP
Canister. This may indicate a faulty rollover valve. Replace/repair as
necessary.
Turn the ignition off.
Disconnect the vacuum hoses at the Evap Purge Solenoid.
Using a hand vacuum pump, apply 10 inches of vacuum to the Evap Purge Solenoid
vacuum source port on the component side.
Does the Evap Purge Solenoid hold vacuum?All
Ye s®Go To 3
No®Replace the Evap Purge Solenoid.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
133
DRIVEABILITY - GAS

TEST ACTION APPLICABILITY
3 Using a hand vacuum pump, apply 10 inches of vacuum to the Evap Purge Solenoid
vacuum source port on the component side.
Turn the ignition on.
Observe the vacuum gauge.
With the DRBIIIt, actuate the EVAP Purge Solenoid .
Does the vacuum drop when the solenoid is actuated?All
Ye s®Go To 4
No®Replace the Evap Purge Solenoid.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
4 Turn the ignition off.
Carefully inspect the Evap Purge Solenoid vacuum supply hose for proper routing.
Check for a pinched or plugged hose from the throttle body to the Purge Solenoid.
Inspect the vacuum nipple at the throttle body for any damage or plugging.
Were any problems found?All
Ye s®Repair the vacuum supply hose/tube as necessary.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No®Go To 5
5 Visually inspect the Evap Purge hose from the Evap Purge Solenoid to the Evap
Canister.
Look for any physical damage such as a pinched, plugged, ripped or dry rotted hose.
Were any problems found?All
Ye s®Repair or replace hose as necessary.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No®Go To 6
6 Visually inspect the Evap Purge hose from between the Evap Canister and the Fuel
Tank.
Check for any physical damage such as a pinched, plugged, ripped or dry rotted hose.
Were any problems found?All
Ye s®Repair or replace hose as necessary.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No®Go To 7
7 Visually inspect the Evap Canister for the following.
Check for physical damage or signs of fuel that has entered the canister.
Check for signs of fuel, this may indicate a bad rollover valve.
Were any problems found?All
Ye s®Repair or Replace as necessary.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No®Test Complete.
134
DRIVEABILITY - GAS
P0441-EVAP PURGE FLOW MONITOR ÐContinued

TEST ACTION APPLICABILITY
1NOTE: A loose gas cap could have caused this DTC to set. Make sure gas cap
is tight and in good condition. Ensure the gas cap meets OEM specifications.
Turn the ignition on.
With the DRBIIIt, read DTC's.
Is the DTC Specific Good Trip Counter displayed and equal to zero?All
Ye s®Go To 2
No®Go To 4
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% and 80% of fuel tank capacity
to properly test the Evap system.
Attach the power red source clip of Miller Tool #6872A to Battery (+) and the black
ground 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.
NOTE: If the pressure does not build up, there is obviously a large leak in
the system and the presence of strong fuel odor may be present. A visual
inspection should find a leak of substantial size.
When the gauge pressure reaches 149H2O, turn the Pressure/Hold Valve to Closed.
Turn the pump timer off. Note the time and pressure. After 10 sec of stabilization
time.
Did the pressure drop more than 69H2O in 2 minutes?All
Ye s®Go To 3
No®Go To 4
137
DRIVEABILITY - GAS
P0442-EVAP LEAK MONITOR MEDIUM (.040) LEAK DETECTED Ð
Continued

Symptom:
P0443-EVAP PURGE SOLENOID CIRCUIT
When Monitored and Set Condition:
P0443-EVAP PURGE SOLENOID CIRCUIT
When Monitored: The ignition on or engine running. Battery voltage greater than 10
volts.
Set Condition: The PCM will set a trouble code if the actual state of the solenoid does not
match the intended state.
POSSIBLE CAUSES
INTERMITTENT CONDITION
EVAP PURGE SOLENOID CONTROL CIRCUIT OPEN
EVAP PURGE SOLENOID CONTROL CIRCUIT SHORTED TO GROUND
EVAP PURGE SOLENOID SENSE CIRCUIT OPEN
EVAP PURGE SOLENOID SENSE CIRCUIT SHORTED TO GROUND
EVAP PURGE SOLENOID
EVAP PURGE SOLENOID LEAKS/STUCK OPEN
EVAP PURGE SOLENOID STUCK CLOSED
POWERTRAIN CONTROL MODULE
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, read DTC's.
Is the Good Trip Counter displayed and equal to zero for P0443?All
Ye s®Go To 2
No®Go To 10
2 Turn the ignition off.
Disconnect the Evap Purge Solenoid harness connector.
Disconnect the Powertrain Control Module harness connectors.
Measure the resistance of the Evap Purge Solenoid Control circuit from the PCM
harness connector to the Evap Purge Solenoid harness connector.
Is the resistance below 5.0 ohms?All
Ye s®Go To 3
No®Repair the Evap Purge Solenoid Control circuit for an open.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
139
DRIVEABILITY - GAS

TEST ACTION APPLICABILITY
3 Turn the ignition off.
Disconnect the Evap Purge Solenoid harness connector.
Disconnect the Powertrain Control Module harness connectors.
Measure the resistance of the Evap Purge Solenoid Control circuit in the Evap Purge
Solenoid harness connector to ground.
Is the resistance below 5.0 ohms?All
Ye s®Repair the Evap Purge Solenoid Control circuit for a short to
ground.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No®Go To 4
4 Turn the ignition off.
Disconnect the Evap Purge Solenoid harness connector.
Disconnect the Powertrain Control Module harness connectors.
Measure the resistance of the Evap Purge Solenoid Sense circuit from the PCM
harness connector to the Evap Purge Solenoid harness connector.
Is the resistance below 5.0 ohms?All
Ye s®Go To 5
No®Repair the Evap Purge Solenoid Sense circuit for an open.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
5 Turn the ignition off.
Disconnect the Evap Purge Solenoid harness connector.
Disconnect the Powertrain Control Module harness connectors.
Measure the resistance of the Evap Purge Solenoid Sense circuit in the Evap Purge
Solenoid harness connector to ground.
Is the resistance below 5.0 ohms?All
Ye s®Repair the Evap Purge Solenoid Sense circuit for a short to
ground.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No®Go To 6
6 Turn the ignition off.
Disconnect the Evap Purge Solenoid harness connector.
Measure the resistance between the terminals of the Evap Purge Solenoid.
Is the resistance between 10.0 and 15.0 ohms?All
No®Replace the Evap Purge Solenoid.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Ye s®Go To 7
7 Turn the ignition off.
Disconnect the vacuum hoses at the Evap Purge Solenoid.
Using a hand vacuum pump, apply 10 inches of vacuum to the Evap Purge Solenoid
vacuum source port on the component side.
Does the Evap Purge Solenoid hold vacuum?All
Ye s®Go To 8
No®Replace the Evap Purge Solenoid.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
140
DRIVEABILITY - GAS
P0443-EVAP PURGE SOLENOID CIRCUIT ÐContinued

TEST ACTION APPLICABILITY
8 Using a hand vacuum pump, apply 10 inches of vacuum to the Evap Purge Solenoid
vacuum source port on the component side.
Turn the ignition on.
Observe the vacuum gauge.
With the DRBIIIt, actuate the EVAP Purge Solenoid .
Does the vacuum drop when the solenoid is actuated?All
Ye s®Go To 9
No®Replace the Evap Purge Solenoid.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
9 If there are no possible causes remaining, view repair.
RepairAll
Repair
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
10WARNING: 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.
Perform a wiggle test of the Evap Purge Solenoid wiring while the circuit is actuated
with the DRBIIIt. Listen for the solenoid to quit actuating. Also watch for the Good
Trip Counter to change to 0.
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.
141
DRIVEABILITY - GAS
P0443-EVAP PURGE SOLENOID CIRCUIT ÐContinued