sensor CHRYSLER VOYAGER 2000 Diagnostic Manual

TEST ACTION APPLICABILITY
23 Ignition off.
Disconnect the Transmission Control Module.
Disconnect the Output Speed Sensor.
Note: Check connectors - Clean/repair as necessary.
Using an Ohmmeter, measure the Output Speed Sensor (OSS) from the TCM to the
OSS.
Is the resistance under 5.0 ohms?ENGINE - 2.0L,
2.4L, 3.3L V6 FFV
and/or ENGINE -
3.3L V6 and/or EN-
GINE - 3.8L V6
w/EATX
Ye s®Go To 24
No®Repair the open Output Speed Sensor Circuit.
Perform Powertrain Verification Test VER-5A.
24 If there are no potential causes remaining, the Output Speed Sensor is assumed to be
defective.
View repair options.ENGINE - 2.0L,
2.4L, 3.3L V6 FFV
and/or ENGINE -
3.3L V6 and/or EN-
GINE - 3.8L V6
w/EATX
Repair
Replace the Output Speed Sensor.
Perform Powertrain Verification Test VER-5A.
25 Ignition Off
Disconnect the Transmission Control Module.
Disconnect the Powertrain Control Module.
Note: Check connectors - Clean/repair as necessary.
Using an Ohmmeter, measure between the VSS Signal Circuit and ground.
Is the resistance below 5.0 ohms?ENGINE - 2.0L,
2.4L, 3.3L V6 FFV
and/or ENGINE -
3.3L V6 and/or EN-
GINE - 3.8L V6
w/EATX
Ye s®Repair the Vehicle Speed Sensor Signal Circuit for a short to
ground.
Perform Powertrain Verification Test VER-5A.
No®Go To 26
26 Ignition off.
Disconnect the Transmission Control Module.
Disconnect the Powertrain Control Module.
Note: Check connectors - Clean/repair as necessary.
With an Ohmmeter, measure the VSS Signal Circuit from the PCM to the TCM.
Is the resistance below 5.0 ohms?ENGINE - 2.0L,
2.4L, 3.3L V6 FFV
and/or ENGINE -
3.3L V6 and/or EN-
GINE - 3.8L V6
w/EATX
Ye s®Go To 27
No®Repair the open Vehicle Speed Sensor Signal Circuit.
Perform Powertrain Verification Test VER-5A.
27 If there are no potential causes remaining, the Powertrain Control Module is
assumed to be defective.
View repair options.ENGINE - 2.0L,
2.4L, 3.3L V6 FFV
and/or ENGINE -
3.3L V6 and/or EN-
GINE - 3.8L V6
w/EATX
Repair
Replace the Powertrain Control Module.
Perform Powertrain Verification Test VER-5A.
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DRIVEABILITY
P-0500 NO VEHICLE SPEED SENSOR SIGNAL ÐContinued
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Symptom:
P-1195 SLOW 1/1 O2S DURING CATALYST MONITOR
When Monitored and Set Condition:
P-1195 SLOW 1/1 O2S DURING CATALYST MONITOR
When Monitored: With the engine running, coolant greater than 76 deg C (170 deg F),
open throttle, steady to slight increasing vehicle speed > 28 Km/h (18 mph) < 88 Km/h (55
mph), with a light load on the engine, for a period no less than five minutes.
Set Condition: The upstream oxygen sensor signal voltage is switching from below 0.39
volt to above 0.6 volt and back fewer times than required.
POSSIBLE CAUSES
OXYGEN SENSOR GROUND CIRCUIT OPEN
1/1 OXYGEN SENSOR CONNECTOR OBSERVABLE DEFECT
1/1 OXYGEN SENSOR DEFECTIVE
ENGINE FLUID CONSUMPTION
EXHAUST SYSTEM LEAKING
PCM CONNECTOR OBSERVABLE DEFECT
TEST ACTION APPLICABILITY
1 Start Engine
Note: Check the Exhaust for excessive smoke caused by oil or coolant
consumption.
Is there an oil or coolant consumption condition present?All
Ye s®Repair engine mechanical as necessary, and replace Upstream O2
Sensor.
Perform Powertrain Verification Test VER-5A.
No®Go To 2
2 Start Engine
Check the Exhaust System for leaks between Engine and Catalytic Converter.
Is there any Exhaust leak?All
Ye s®Repair or replace leaking Exhaust parts as necessary.
Perform Powertrain Verification Test VER-5A.
No®Go To 3
175
DRIVEABILITY
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TEST ACTION APPLICABILITY
3 Ignition Off
Disconnect the Upstream Oxygen Sensor Connector.
Note: Check connectors - Clean/repair as necessary.
Using an Ohmmeter, measure the resistance from the O2 Sensor Ground Circuit to
a good ground.
Is the resistance below 5.0 ohms?All
Ye s®Go To 4
No®Repair the open Sensor Ground Circuit to the Upstream Oxygen
Sensor.
Perform Powertrain Verification Test VER-5A.
4 Ignition Off
Disconnect the Upstream Oxygen Sensor Connector.
Note: Check connectors - Clean/repair as necessary.
Inspect the Connectors and Terminals.
Is any Terminal damaged, pushed out or miswired?All
Ye s®Repair or replace as necessary.
Perform Powertrain Verification Test VER-5A.
No®Go To 5
5 Ignition Off
Disconnect the Powertrain Control Module Connector.
Note: Check connectors - Clean/repair as necessary.
Inspect the Connector.
Is the Connector condition OK?All
Ye s®Go To 6
No®Repair as necessary.
Perform Powertrain Verification Test VER-5A.
6 If there are no potential causes remaining, the Upstream Oxygen Sensor is assumed
to be defective.
View repair options.All
Repair
Replace the Upstream Oxygen Sensor.
Perform Powertrain Verification Test VER-5A.
176
DRIVEABILITY
P-1195 SLOW 1/1 O2S DURING CATALYST MONITOR ÐContinued
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Symptom:
P-1294 TARGET IDLE NOT REACHED
When Monitored and Set Condition:
P-1294 TARGET IDLE NOT REACHED
When Monitored: Engine idling more than 2.8 seconds and coolant temp greater than 70
degrees C (160 degrees F). For an automatic transmission, in drive mode. There must not
be a MAP Sensor or TP Sensor or speed sensor trouble code.
Set Condition: Engine idle is > 200 RPM above target idle speed or less than 100 RPM
below target idle speed for 20 seconds. Two consecutive failures in a row will store this
trouble code.
POSSIBLE CAUSES
ENG VACUUM HOSES AND COMPONENTS LEAKS
THROTTLE BODY DEFECTIVE
THROTTLE PLATE/LINKAGE NOT IN CORRECT POS
IAC WIRING HARNESS INTERMITTENT DEFECT
IAC WIRING HARNESS OBSERVABLE DEFECTIVE
TEST ACTION APPLICABILITY
1 Ignition Off
Does the engine exhibit a start and stall condition?All
Ye s®Go To 2
No®Go To 4
2 Ignition Off
Perform minimum air flow test that is described in the service information.
Is the idle RPM within the range shown in the chart?All
Ye s®Test Complete.
No®Go To 3
180
DRIVEABILITY
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Symptom:
P-1297 NO CHANGE IN MAP FROM START TO RUN
When Monitored and Set Condition:
P-1297 NO CHANGE IN MAP FROM START TO RUN
When Monitored: Engine is idling with a stable RPM (RPM fluctuation < 64 RPM) and
the vehicle is not moving.
Set Condition: Too small a difference is seen between barometric pressure at ignition on
and manifold vacuum.
POSSIBLE CAUSES
MAP SENSOR 5-VOLT SUPPLY CIRCUIT OPEN
MAP SENSOR WIRING HARNESS INTERMITTENT DEF
VACUUM PORTS RESTRICTED OR DEFECTIVE
MANIFOLD ABSOLUTE PRESSURE SENSOR RESTRICTED
MAP SENSOR DEFECTIVE (A)
MAP SENSOR DEFECTIVE (B)
TEST ACTION APPLICABILITY
1 Ignition On, Engine Not Running
With the DRB, read codes
Is9MAP Sensor voltage too low9code set?All
Ye s®Refer to symptom P-0107 MAP SENSOR VOLTAGE TOO LOW in
the DRIVEABILITY category.
No®Go To 2
2 With the DRB erase Codes.
Ignition On, Engine Not Running
Start engine and allow engine to idle for 30 seconds.
With the DRB read codes.
Does the DRB show9No change in MAP from start to run9?All
Ye s®Go To 3
No®Go To 6
3 Ignition on, with engine not running.
Disconnect MAP Sensor.
Note:Check connectors - clean/repair as necessary.
Ignition on, with engine not running.
Using a Voltmeter, measure the MAP Sensor 5-Volt Supply Circuit at the MAP
Sensor Connector.
Is the voltage above 4.0 volts?All
Ye s®Go To 4
No®Repair the open MAP Sensor 5-volt Supply Circuit.
Perform Powertrain Verification Test VER-5A.
183
DRIVEABILITY
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TEST ACTION APPLICABILITY
4 Ignition off.
Remove MAP Sensor and inspect for Vacuum restrictions.
Check connectors - Clean/repair as necessary.
Was there a restriction?All
Ye s®Remove the restriction and reinstall the MAP Sensor
Perform Powertrain Verification Test VER-5A.
No®Go To 5
5 If there are no potential causes remaining, the MAP Sensor is assumed to be
defective.
View repair options.All
Repair
Replace the MAP Sensor.
Perform Powertrain Verification Test VER-5A.
6 Engine must be running.
While monitoring the DRB display, snap the Throttle open and closed.
Did the vacuum drop rapidly below 1.09?All
Ye s®Go To 7
No®Go To 8
7 Engine must be running.
With the DRB,set the engine speed to 1500 RPM.
With the engine RPM at 1500, read MAP sensor voltage.
While monitoring the voltage, wiggle the wiring from the MAP Sensor to PCM.
Did the engine stall or voltage become erratic?All
Ye s®Repair the Wiring or Connector defective between the Map
Sensor and the PCM.
Perform Powertrain Verification Test VER-5A.
No®Test Complete.
8 Engine must be running.
With the DRB,set the engine speed to 1500 RPM.
With the engine RPM at 1500, read MAP sensor voltage.
While monitoring the voltage, wiggle the wiring from the MAP Sensor to PCM.
Did the engine stall or voltage become erratic?All
Ye s®Repair the Wiring or Connector defective between the Map
Sensor and the PCM.
Perform Powertrain Verification Test VER-5A.
No®Go To 9
9 Ignition Off
Remove the MAP Sensor and inspect condition of Intake Manifold and MAP Sensor
Vacuum Ports.
Check connectors - Clean/repair as necessary.
Is there a restriction or defect in the Vacuum Ports?All
Ye s®Repair the restricted or defective Vacuum Ports.
Perform Powertrain Verification Test VER-5A.
No®Go To 10
184
DRIVEABILITY
P-1297 NO CHANGE IN MAP FROM START TO RUN ÐContinued
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TEST ACTION APPLICABILITY
10 If there are no potential causes remaining, the MAP Sensor is assumed to be
defective.
View repair options.All
Repair
Replace the MAP sensor.
Perform Powertrain Verification Test VER-5A.
185
DRIVEABILITY
P-1297 NO CHANGE IN MAP FROM START TO RUN ÐContinued
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Symptom:
P-1391 INTERMITTENT LOSS OF CMP OR CKP
When Monitored and Set Condition:
P-1391 INTERMITTENT LOSS OF CMP OR CKP
When Monitored: Engine running over 7 seconds.
Set Condition: When the expected cam signal level disagrees with the actual cam signal
level.
POSSIBLE CAUSES
CKP SENSOR CKT WIRING HARNESS INTER DEF
CMP SENSOR SIGNAL CKT WIRING HARNESS INTER DEF
CAMSHAFT POSITION SENSOR DEFECTIVE
CAMSHAFT SPROCKET DEFECTIVE
CRANKSHAFT DEFECTIVE
CRANKSHAFT POSITION SENSOR DEFECTIVE
DISTRIBUTOR PULSE RING DEFECTIVE
FLYWHEEL DEFECTIVE
CAMSHAFT TARGET MAGNET DEFECTIVE
CAMSHAFT THRUST PLATES(S) NOT ATTACHED
CKP SENSOR CONNECTOR TERMINALS OBS DEF
CKP SENSOR CONNECTOR TERMINALS OBS DEFECT
PCM CONN TERMINALS OBS DEF (CKP SENSOR)
PCM CONN TERMINALS OBS DEF (CMP SENSOR)
CAMSHAFT/CYLINDER HEAD DEFECTIVE
TEST ACTION APPLICABILITY
1 Ignition Off.
At the CMP Sensor, backprobe the CMP Sensor Signal Circuit with the Oscilloscope
voltage measurement lead.
Start the Engine and observe the CMP Sensor voltage pattern on the Oscilloscope.
Are there any of the Camshaft Position Sensor Signals missing?ENGINE - 3.3L V6
and/or ENGINE -
3.8L V6 and/or EN-
GINE - 3.3L V6
FFV
Ye s®Go To 2
No®Go To 6
191
DRIVEABILITY
ProCarManuals.com

TEST ACTION APPLICABILITY
2 Ignition Off.
Disconnect the CMP Sensor Connector.
Note: Check connectors - Clean/repair as necessary.
Inspect all Terminals.
Is any Terminal damaged, pushed out or miswired?ENGINE - 3.3L V6
and/or ENGINE -
3.8L V6 and/or EN-
GINE - 3.3L V6
FFV
Ye s®Repair Terminal(s) for damage, pushout or miswiring.
Perform Powertrain Verification Test VER-5A.
No®Go To 3
3 Ignition Off.
Disconnect the PCM.
Note: Check connectors - Clean/repair as necessary.
Inspect all Terminals.
Is any Terminal damaged, pushed out, or miswired?ENGINE - 3.3L V6
and/or ENGINE -
3.8L V6 and/or EN-
GINE - 3.3L V6
FFV
Ye s®Repair Terminal(s) for damage, pushout or miswiring.
Perform Powertrain Verification Test VER-5A.
No®Go To 4
4 Ignition Off.
Disconnect the CMP Sensor Connector.
Note: Check connectors - Clean/repair as necessary.
Remove the Camshaft Position Sensor.
Inspect the Camshaft Sprocket. See pertinent service information for instructions.
Is the Camshaft Sprocket okay?ENGINE - 3.3L V6
and/or ENGINE -
3.8L V6 and/or EN-
GINE - 3.3L V6
FFV
Ye s®Go To 5
No®Repair as necessary.
Perform Powertrain Verification Test VER-5A.
5 Ignition Off.
Disconnect the CMP Sensor Connector.
Note: Check connectors - Clean/repair as necessary.
Remove the CMP Sensor.
Inspect the Camshaft Thrust Plate(s).
Are the Camshaft Thrust Plate(s) attached?ENGINE - 3.3L V6
and/or ENGINE -
3.8L V6 and/or EN-
GINE - 3.3L V6
FFV
Ye s®Replace the Camshaft Position Sensor.
Perform Powertrain Verification Test VER-5A.
No®Repair or replace the Camshaft Thrust Plate(s) as necessary.
Perform Powertrain Verification Test VER-5A.
6 Start Engine.
At PCM, backprobe CMP Sensor Signal Circuit with Oscilloscope's voltage measure-
ment lead.
While observing the Oscilloscope pattern, wiggle CMP Sensor Circuit from Sensor to
PCM.
Were any signals missing when the wiggle test was conducted?ENGINE - 3.3L V6
and/or ENGINE -
3.8L V6 and/or EN-
GINE - 3.3L V6
FFV
Ye s®Note where wiggling the Wires caused a missing CMP Sensor
Signal. Repair Camshaft and Crankshaft Wiring Harness as
necessary.
Perform Powertrain Verification Test VER-5A.
No®Go To 7
192
DRIVEABILITY
P-1391 INTERMITTENT LOSS OF CMP OR CKP ÐContinued
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TEST ACTION APPLICABILITY
7 Ignition Off.
At the CKP Sensor, backprobe the CKP Sensor Signal Circuit with the Oscilloscope's
voltage measurement lead.
Start the Engine and observe the CKP Sensor voltage pattern on the Oscilloscope.
Are any Crankshaft Position Sensor Signals missing?ENGINE - 3.3L V6
and/or ENGINE -
3.8L V6 and/or EN-
GINE - 3.3L V6
FFV
Ye s®Go To 8
No®Go To 11
8 Ignition Off.
Disconnect the CKP Sensor Connector.
Note: Check connectors - Clean/repair as necessary.
Inspect all Terminals.
Is any Terminal damaged, pushed out or miswired?ENGINE - 3.3L V6
and/or ENGINE -
3.8L V6 and/or EN-
GINE - 3.3L V6
FFV
Ye s®Repair Terminal(s) for damage, pushout or miswiring.
Perform Powertrain Verification Test VER-5A.
No®Go To 9
9 Ignition Off.
Disconnect the PCM.
Note: Check connectors - Clean/repair as necessary.
Inspect all Terminals.
Is any Terminal damaged, pushed out or miswired?ENGINE - 3.3L V6
and/or ENGINE -
3.8L V6 and/or EN-
GINE - 3.3L V6
FFV
Ye s®Repair Terminal(s) for damage, pushout or miswiring.
Perform Powertrain Verification Test VER-5A.
No®Go To 10
10 Ignition Off
Remove the Crankshaft Position (CKP) Sensor.
Inspect the Slots in the Flywheel for debris or damage.
Is the Flywheel damaged?ENGINE - 3.3L V6
and/or ENGINE -
3.8L V6 and/or EN-
GINE - 3.3L V6
FFV
Ye s®Repair or replace as necessary.
Perform Powertrain Verification Test VER-5A.
No®Replace the Crankshaft Position Sensor.
Perform Powertrain Verification Test VER-5A.
11 Start Engine.
At PCM, backprobe CKP Sensor Signal Circuit with Oscilloscope's voltage measure-
ment lead.
While observing the Oscilloscope pattern, wiggle CKP Sensor Circuit from Sensor to
PCM.
Were any CKP Sensor Signals missing when the wiggle test was conducted?ENGINE - 3.3L V6
and/or ENGINE -
3.8L V6 and/or EN-
GINE - 3.3L V6
FFV
Ye s®Note where wiggling the wires caused a missing CKP Sensor
signal. Repair Camshaft and Crankshaft Wire Harness as neces-
sary.
Perform Powertrain Verification Test VER-5A.
No®Test Complete.
193
DRIVEABILITY
P-1391 INTERMITTENT LOSS OF CMP OR CKP ÐContinued
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