2000 CHRYSLER VOYAGER catalytic converter

TABLE OF CONTENTS - Continued
P-1492 BATTERY TEMP SENSOR VOLTAGE TOO HIGH......................18
P-1493 BATTERY TEMP SENSOR VOLTAGE TOO LOW.......................18
P-1594 CHARGING SYSTEM VOLTAGE TOO HIGH...........................19
P-1682 CHARGING SYSTEM VOLTAGE TOO LOW...........................21
* CHECKING CHARGING SYSTEM OPERATION WITH NO DTC'S..............24
DRIVEABILITY
P-0106 BAROMETRIC PRESSURE OUT OF RANGE..........................27
P-0107 MAP SENSOR VOLTAGE TOO LOW.................................30
P-0108 MAP SENSOR VOLTAGE TOO HIGH................................32
P-0112 INTAKE AIR TEMP SENSOR VOLTAGE LOW..........................34
P-0113 INTAKE AIR TEMPERATURE SENSOR VOLT HIGH....................36
P-0117 ECT SENSOR VOLTAGE TOO LOW.................................38
P-0118 ECT SENSOR VOLTAGE TOO HIGH.................................40
P-0121 TPS VOLTAGE DOES NOT AGREE WITH MAP........................42
P-0122 THROTTLE POSITION SENSOR VOLTAGE LOW......................45
P-0123 THROTTLE POSITION SENSOR VOLTAGE HIGH......................48
P-0125 CLOSED LOOP TEMP NOT REACHED...............................51
P-0131 1/1 O2 SENSOR VOLTAGE SHORTED TO GROUND...................53
P-0132 1/1 O2 SENSOR SHORTED TO VOLTAGE............................55
P-0133 1/1 O2S SLOW RESPONSE........................................57
P-0134 1/1 O2 SENSOR STAYS AT CENTER................................60
P-0135 O2S HEATER FAILURE............................................62
P-0137 1/2 O2 SENSOR VOLTAGE SHORTED TO GROUND...................64
P-0138 1/2 O2 SENSOR SHORTED TO VOLTAGE............................66
P-0139 1/2 O2S SLOW RESPONSE........................................68
P-0140 1/2 O2 SENSOR STAYS AT CENTER................................71
P-0141 1/2 O2S HEATER FAILURE........................................73
P-0171±1/1 FUEL SYSTEM LEAN..........................................75
P-0201 INJECTOR #1 CONTROL CIRCUIT..................................83
P-0202 INJECTOR #2 CONTROL CIRCUIT..................................86
P-0203 INJECTOR #3 CONTROL CIRCUIT..................................89
P-0204 INJECTOR #4 CONTROL CIRCUIT..................................92
P-0205 INJECTOR #5 CONTROL CIRCUIT..................................95
P-0206 INJECTOR #6 CONTROL CIRCUIT..................................97
P-0300 MULTIPLE CYLINDER MIS-FIRE...................................100
P-0301 CYLINDER #1 MIS-FIRE..........................................100
P-0302 CYLINDER #2 MIS-FIRE..........................................100
P-0303 CYLINDER #3 MIS-FIRE..........................................100
P-0304 CYLINDER #4 MIS-FIRE..........................................100
P-0305 CYLINDER #5 MIS-FIRE..........................................104
P-0306 CYLINDER #6 MIS-FIRE..........................................104
P-0320 NO CRANK REFERENCE SIGNAL AT PCM..........................108
P-0340 NO CAM SIGNAL AT PCM........................................113
P-0351 IGNITION COIL #1 PRIMARY CIRCUIT..............................122
P-0352 IGNITION COIL #2 PRIMARY CIRCUIT..............................125
P-0353 IGNITION COIL #3 PRIMARY CIRCUIT..............................128
P-0401 EGR SYSTEM FAILURE..........................................131
P-0403 EGR SOLENOID CIRCUIT........................................133
P-0420 1/1 CATALYTIC CONVERTER EFFICIENCY..........................136
P-0441 EVAP PURGE FLOW MONITOR FAILURE...........................138
P-0442 EVAP LEAK MONITOR SMALL LEAK DETECTED.....................140
P-0455 EVAP LEAK MONITOR LARGE LEAK DETECTED.....................140
ii
ProCarManuals.com

EURO STAGE III OBD MONITOR INFORMATION
Comprehensive Major Monitors Major Monitors
Components Non Fuel Control Fuel Control
Monitor & Non Misfire & Misfire
Run constantly Run Once Per Trip Run Constantly
Includes All Engine Hardware Monitors Entire Emission Monitors Entire System
- Sensors, Switches, System
Solenoids, etc.
One Trip Faults - Turns On Two Trip Faults - Turns On Two Trip Faults - Turns On
The MIL and Sets DTC After The MIL and Sets DTC After The MIL and Sets DTC After
One Failure (except for most ra-
tionality tests which are two trip)Two Consecutive Failures Two Consecutive Failures
Priority 3 Priority 1 or 3 Priority 2 or 4
All Checked For Continuity Done Stop Testing = Yes
Fuel Control Monitor
Open Monitors Fuel Control
Short To Ground Oxygen Sensor Heater System For:
Short To Voltage Oxygen Sensor Response
Fuel System Lean
Fuel System Rich
Inputs Checked For
Requires 3 Consecutive Rationality
Catalytic Converter
Fuel System Good TripsTo Efficiency Except EWMA
Extinguish The MIL Outputs Checked For - up to 6 tests per trip
Functionality and a one trip fault
EGR System
Misfire Monitor
Monitors For Engine Misfire
at:
1000 RPM Counter
(Type B)
**200 RPM Counter
(Type A)
Requires 3 Consecutive Requires 3 Consecutive Requires 3 Consecutive
Global/Alternate Good Trips Global Good Trips Misfire Good Trips
to Extinguish the MIL* to Extinguish the MIL* To Extinguish the MIL
*40 Warm Up Cyclesare required to erase **Type A misfire is a one
DTC's
afterthe MIL has been extinguished. trip failure. The MIL will
illuminate and blink at
the first failure.
3
GENERAL INFORMATION
ProCarManuals.com

Symptom:
P-0420 1/1 CATALYTIC CONVERTER EFFICIENCY
When Monitored and Set Condition:
P-0420 1/1 CATALYTIC CONVERTER EFFICIENCY
When Monitored: After engine warm up to 63 degrees C (147 degrees F), 180 seconds of
open throttle operation, at a speed greater than 30 Km/h (20 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
EXHAUST LEAK
ENGINE MECHANICAL PROBLEM
CATALYTIC CONVERTER DEFECTIVE
UPSTREAM O2 SENSOR OLDER THAN DOWNSTREAM O2 SENSOR
CATALYST EFFICIENCY FAILURE DOES NOT REOCCUR
TEST ACTION APPLICABILITY
1 With the DRB, read the DTCs.
Is the GLOBAL GOOD TRIPS counter displayed and equal to zero?All
Ye s®Go To 3
No®Go To 2
2 At this time the Catalyst Efficiency Failure does not exist or is an intermittent
problem.
With the DRB, read the FREEZE FRAME DATA.
With this screen, attempt to duplicate the condition that has set this fault.
While using FREEZE FRAME DATA pay particular attention to the fault setting
conditions, such as speed, temp, load, and map vacuum.
Does the Catalyst Efficiency Failure Reoccur?All
Ye s®Go To 3
No®The Catalytic Conveter Efficiency Failure no longer exists.
Perform VERIFICATION TEST VER-5A3.
3 Start Engine and let idle.
Check for exhaust leaks between the Engine and the appropriate Downstream O2
Sensor.
Are there any exhaust leaks?All
Ye s®Repair or replace leaking exhaust parts as necessary.
Perform VERIFICATION TEST VER-5A3.
No®Go To 4
136
DRIVEABILITY
ProCarManuals.com

TEST ACTION APPLICABILITY
4NOTE: Check the exhaust for excessive smoke from internal oil or coolant
leaks.
Is there an oil or coolant consumption condition present?All
Ye s®Repair engine mechanical as necessary and replace Catalytic
Converter.
Perform VERIFICATION TEST VER-5A3.
No®Go To 5
5NOTE: A new Downstream O2 Sensor along with an aging Upstream O2
Sensor may cause this trouble code to set.
Review vehicle repair history.
Has the Downstream O2 Sensor been replaced without replacing the Upstream O2
Sensor?All
Ye s®Replace the appropriate Upstream Oxygen Sensor.
Perform VERIFICATION TEST VER-5A3.
No®Replace the Catalytic Converter.
Perform VERIFICATION TEST VER-5A3.
137
DRIVEABILITY
P-0420 1/1 CATALYTIC CONVERTER EFFICIENCY ÐContinued
ProCarManuals.com

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
ProCarManuals.com