2001 CHRYSLER VOYAGER Service Manual

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Page 1297 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
4 Turn the ignition off.
Remove the CKP Sensor.
Inspect the Crankshaft Position Sensor for conditions such as loose mounting screws,
damage or debris.
Is there any evidence o

Page 1298 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
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: Th

Page 1299 of 4284

CHRYSLER VOYAGER 2001 Service Manual Symptom List:
P0340-CMP POSITION SENSOR CIRCUIT SIGNAL FREQUENCY
TOO HIGH
P0340-CMP POSITION SENSOR CIRCUIT STATIC PLAUSIBILITY
Test Note: All symptoms listed above are diagnosed using the same tests.

Page 1300 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
2 Turn the ignition on.
With the DRBIIIt, erase the ECM DTCs.
Test drive the vehicle.
With the DRBIIIt, read the ECM DTCs.
Does the DRB III display this DTC?All
Ye s®Go To 3

Page 1301 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
7 Turn the ignition on.
With the DRB III, read the CMP Sensor RPM.
Connect one end of a jumper wire to the CMP signal circuit and tap the other end of
the jumper wire to Sens

TEST ACTION APPLICABILITY
7 Turn the ignition on.
With the DRB III, read the CMP Sensor RPM.
Connect one end of a jumper wire to the CMP signal circuit and tap the other end of
the jumper wire to Sensor Ground at the CMP harness connector while observing the
DRB.
Does the DRB III display an RPM change while tapping the jumper wire to Sensor
Ground?All
Ye s®Go To 8
No®Replace and program the ECM in accordance with the Service
Information.
Perform ROAD TEST VERIFICATION - VER-2.
8 Turn the ignition off.
With the DRB III lab scope lead, backprobe the CMP Signal circuit.
Set the DRB lab scope settings as follows: Time = 0.1s/Div, 20 volts scale, Offset =
0.00volts, Probe = X10, Coupling = DC
While observing the DRB III display, crank the engine.
NOTE: The DRB III should display a digital signal (square wave) similar to
that shown in the support material.
Does the DRB display an uninterrupted digital signal (square wave)?All
Ye s®Go To 9
No®Replace the Camshaft Position Sensor in accordance with the
Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
9 Turn the ignition on.
Remove the CMP Sensor.
Inspect the camshaft for conditions such as loose mounting screws, damage, debris or
cracked teeth.
Is there any evidence of these conditions?All
Ye s®Repair as necessary.
Perform ROAD TEST VERIFICATION - VER-2.
No®Replace the Camshaft Position Sensor.
Perform ROAD TEST VERIFICATION - VER-2.
10 Turn the ignition off.
Disconnect the CMP Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance of the CMP Sensor Signal circuit.
Is the resistance below 10.0 ohms?All
Ye s®Go To 11
No®Repair the CMP Sensor Signal circuit for an open
Perform ROAD TEST VERIFICATION - VER-2.
11 Turn the ignition off.
Disconnect the CMP Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance between ground and the CMP Sensor Signal circuit.
Is the resistance below 1000 ohms?All
Ye s®Repair the CMP Sensor Signal circuit for a short to ground.
Perform ROAD TEST VERIFICATION - VER-2.
No®Go To 12
82
DRIVEABILITY - DIESEL
P0340-CMP POSITION SENSOR CIRCUIT SIGNAL FREQUENCY TOO
HIGH Ð
Continued

Page 1302 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
12 Turn the ignition off.
Disconnect the CMP Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance between the CMP Sensor Signal circuit and

Page 1303 of 4284

CHRYSLER VOYAGER 2001 Service Manual Symptom List:
P0380-GLOW PLUG CIRCUIT A OPEN CIRCUIT
P0380-GLOW PLUG CIRCUIT A SHORT CIRCUIT
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be P0

Page 1304 of 4284

CHRYSLER VOYAGER 2001 Service Manual TEST ACTION APPLICABILITY
2WARNING: 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
2WARNING: 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.
3 Turn the ignition off.
Disconnect the Glow Plug Relay harness connector.
Turn the ignition on.
Using a 12-volt test light connected to ground, check the ECM/PCM Relay Output
circuit.
Does the test light illuminate brightly?All
Ye s®Go To 4
No®Repair the ECM/PCM Relay Output circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
4 Turn the ignition off.
Install a substitute relay in place of the Glow Plug Relay.
Perform several ignition key cycles, pausing for at least 10 seconds between each
cycle.
Turn the ignition on.
With the DRB, read ECM DTCs.
Did this DTC reset?All
Ye s®Go To 5
No®Replace the Glow Plug Relay.
Perform ROAD TEST VERIFICATION - VER-2.
5 Turn the ignition off.
Disconnect the ECM harness connectors.
Disconnect the Glow Plug Relay harness connector.
Remove the ECM/PCM Relay from the IPM.
Connect a jumper wire between cavity 1 and cavity 4 of the ECM/PCM Relay
connector.
Turn the ignition on.
Measure the voltage on the Glow Plug Relay Control circuit.
Is the voltage above 1.0 volt?All
Ye s®Repair the Glow Plug Relay Control circuit for a short to voltage.
Perform ROAD TEST VERIFICATION - VER-2.
No®Go To 6
85
DRIVEABILITY - DIESEL
P0380-GLOW PLUG CIRCUIT A OPEN CIRCUIT ÐContinued

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