Chrysler New Yorker. Manual — part 338
Hex Code
Generic
Scan Tool
Code
DRB Scan Tool Display
Description of Diagnostic Trouble Code
46
P0206
Injector #6 Control Circuit
Injector #6 output driver does not respond
properly to the control signal.
47
P1478
Int. Temp Sensor Ckt.
Internal temperature sensor input voltage out of
acceptable range.
4C
P0354
Ignition coil #4 ckt
Peak primary circuit current not achieved with
maximum dwell time.
4D
P0355
Ignition coil #5 ckt
Peak primary circuit current not achieved with
maximum dwell time.
52
P1683
SPD CTRL PWR RLY; or S/C
12v Driver CKT
Malfunction detected with power feed to speed
control servo solenoids.
56
P1596
Speed Control Switch Always
High
Speed control switch input above the maximum
acceptable voltage.
57
P1597
Speed Control Switch Always
Low
Speed control switch input below the minimum
acceptable voltage.
58
P1289
Manifold Tune Valve Solenoid
Circuit
An open or shorted condition detected in the MTV
solenoid control circuit.
5A
P1598
A/C Pressure Sensor Volts
Too High
Sensor input voltage is above 4.9 volts.
5B
P1599
A/C Pressure Sensor Volts
Too Low
Sensor input voltage is below .098 volts.
5C
P1490
Low Speed Fan CTRL Relay
Circuit
An open or shorted condition detected in the
control circuit of the low speed radiator fan relay.
5D
P1489
Hi Speed Fan Relay Circuit
An open or shorted condition detected in the
control circuit of the high speed radiator fan relay.
60**
P1698
No PCI Messages From TCM
No messages received from Transmission Control
Module.
61
P1695
No PCI Message From Body
Control Module
No messages received from Body Control
Module.
65
P1282
Fuel Pump Relay Control
Circuit
An open or shorted condition detected in the fuel
pump relay control circuit.
66
P0133
Right Bank Upstream O2S
Slow Response
Oxygen sensor response slower than minimum
required switching frequency.
67
P0135
Right Rear (or just) Upstream
O2S Heater Failure
Upstream oxygen sensor heating element circuit
malfunction.
69
P0141
Right Rear (or just)
Downstream O2S Heater
Failure
Oxygen sensor heating element circuit
malfunction.
6A
P0300
Multiple Cylinder Mis-fire
Misfire detected in multiple cylinders.
6B
P0301
Cylinder #1 Mis-fire
Misfire detected in cylinder #1.
6C
P0302
Cylinder #2 Mis-fire
Misfire detected in cylinder #2.
6D
P0303
Cylinder #3 Mis-fire
Misfire detected in cylinder #3.
6E
P0304
Cylinder #4 Mis-fire
Misfire detected in cylinder #4.
70
P0420
Right Rear (or just) Catalyst
Efficiency Failure
Catalyst efficiency below required level.
300M
EMISSION CONTROL SYSTEMS
25 - 5
DESCRIPTION AND OPERATION (Continued)
Hex Code
Generic
Scan Tool
Code
DRB Scan Tool Display
Description of Diagnostic Trouble Code
71
P0441
Evap Purge Flow Monitor
Failure
Insufficient or excessive vapor flow detected
during evaporative emission system operation.
72
P1899
P/N Switch Stuck in Park or
in Gear
Incorrect input state detected for the Park/Neutral
switch, auto. trans. only.
73
P0551
Pwr steering sw perf
Incorrect input state detected for the power
steering switch circuit.
76
P0172
Right Rear (or just) Fuel
System Rich
A rich air/fuel mixture has been indicated by an
abnormally lean correction factor.
77
P0171
Right Rear (or just) Fuel
System Lean
A lean air/fuel mixture has been indicated by an
abnormally rich correction factor.
78
P0175
Left Front Fuel System Rich
A rich air/fuel mixture has been indicated by an
abnormally lean correction factor.
79
P0174
Left Front Fuel System Lean
A lean air/fuel mixture has been indicated by an
abnormally rich correction factor.
7A
P0153
Left Front Upstream O2
Sensor Slow Response
Oxygen sensor response slower than minimum
required switching frequency.
7C
P0155
Left Front Upstream O2S
Heater Failure
Oxygen sensor heater element malfunction.
7D
P0161
Left Front Downstream O2S
Heater Failure
Oxygen sensor heater element malfunction.
7E
P0138
Right Rear (or just)
Downstream O2S Shorted to
Voltage
Oxygen sensor input voltage maintained above
the normal operating range.
7F
P0158
Left Front O2S Shorted to
Voltage
Oxygen sensor input voltage maintained above
the normal operating range.
80
P0125
Closed Loop Temp Not
Reached
Engine does not reach 20°F within 5 minutes with
a vehicle speed signal.
81
P0140
Right Rear (or just)
Downstream O2S Stays at
Center
Neither rich or lean condition detected from the
downstream oxygen sensor.
82
P0160
Left Front O2S Stays at
Center
Neither rich or lean condition detected from the
downstream oxygen sensor.
84
P0121
TPS Voltage Does Not Agree
With MAP
TPS signal does not correlate to MAP sensor.
89
P0700
EATX Controller DTC Present
An automatic transmission input DTC has been
set in the transmission controller. Refer to Group
21.
8A
P1294
Target Idle Not Reached
Actual idle speed does not equal target idle
speed.
91
P1299
High air flow
MAP sensor signal does correlate to TPS signal.
Possible vacuum leak.
92
P1496
5 Volt Supply Output Too Low
5 volt output from regulator does not meet
minimum requirement.
95
P0462
Fuel Level Sending Unit Volts
Too Low
Open circuit between PCM and fuel gauge
sending unit.
25 - 6
EMISSION CONTROL SYSTEMS
300M
DESCRIPTION AND OPERATION (Continued)
Hex Code
Generic
Scan Tool
Code
DRB Scan Tool Display
Description of Diagnostic Trouble Code
96
P0463
Fuel Level Sending Unit Volts
Too High
Circuit shorted to voltage between PCM and fuel
gauge sending unit.
97
P0460
Fuel Level Unit No Change
Over Miles
No movement of fuel level sender detected.
98
P0703
Brake Switch Stuck Pressed
or Released
No release of brake switch seen after too many
accelerations.
99
P1493
Ambient/Batt Temp Sen Volts
Too Low
Battery temperature sensor input voltage below
an acceptable range.
9A
P1492
Ambient/Batt Temp Sensor
Volts Too High
Battery temperature sensor input voltage above
an acceptable range.
9B
P0131
Right Rear (or just) Upstream
O2S Shorted to Ground
O2 sensor voltage too low, tested after cold start.
9C
P0137
Right Rear (or just)
Downstream O2S Shorted to
Ground
O2 sensor voltage too low, tested after cold start.
9D
P1391
Intermittent Loss of CMP or
CKP
Intermittent loss of either camshaft or crankshaft
position sensor.
A0
P0442
Evap sys small leak
Small leak has been detected by the leak
detection monitor.
A1
P0455
Evap sys gross leak
The leak detection monitor is unable to pressurize
EVAP system, indicating a large leak.
AE
P0305
Cylinder #5 Mis-fire
Misfire detected in cylinder #5.
AF
P0306
Cylinder #6 Mis-fire
Misfire detected in cylinder #6.
B4
P0432
Left Front Catalyst Efficiency
Failure
Catalyst efficiency below required level.
B5
P0151
Left Front O2S Shorted to
Ground
O2 sensor voltage too low, tested after cold start.
B6
P0157
Left Front O2S Shorted to
Ground
O2 sensor voltage too low, tested after cold start.
B7
P1495
Leak det pmp sol ckt
Leak detection pump solenoid circuit fault (open
or short).
B8
P1494
Leak det pmp pres sw
Leak detection pump switch does not respond to
input.
BA
P1398
Mis-fire Adaptive Numerator
at Limit
CKP sensor target windows have too much
variation.
BB
P1486
EVAP hose pinched
Plug or pinch detected between purge solenoid
and fuel tank.
CO
P1195
Cat Mon Slow O2 Right
Upstream
Oxygen sensor response slower than minimum
required switching frequency during catalyst
monitor.
C1
P1196
Cat Mon Slow O2 Left
Upstream
Oxygen sensor response slower than minimum
required switching frequency during catalyst
monitor.
D4
P0405
EGR pos volt low
EGR position sensor input below the acceptable
voltage range.
300M
EMISSION CONTROL SYSTEMS
25 - 7
DESCRIPTION AND OPERATION (Continued)
Hex Code
Generic
Scan Tool
Code
DRB Scan Tool Display
Description of Diagnostic Trouble Code
D5
P0406
EGR pos volt high
EGR position sensor input above the acceptable
voltage range.
D7
P0404
EGR sensor perf
EGR position sensor signal does not correlate to
EGR duty cycle.
D8
P0356
Ignition coil #6 ckt
Peak primary circuit current not achieved with
max. dwell time.
D9
P1288
Short run valve ckt
An open or shorted condition detected in the SRV
tuning circuit.
E1
P1687
No MIC Bus Message
No PCI message received from MIC module.
E2
P1686
No SKIM Bus Message
No PCI message recived from SKIM module.
E8
P1685
SKIM Invalid Key
The engine controller has received an invalid key
from the SKIM.
MONITORED SYSTEMS
There are new electronic circuit monitors that
check fuel, emission, engine and ignition perfor-
mance. These monitors use information from various
sensor circuits to indicate the overall operation of the
fuel, engine, ignition and emission systems and thus
the emissions performance of the vehicle.
The fuel, engine, ignition and emission systems
monitors do not indicate a specific component prob-
lem. They do indicate that there is an implied prob-
lem within one of the systems and that a specific
problem must be diagnosed.
If any of these monitors detect a problem affecting
vehicle emissions, the Malfunction Indicator (Check
Engine) Lamp will be illuminated. These monitors
generate Diagnostic Trouble Codes that can be dis-
played with the check engine lamp or a scan tool.
The following is a list of the system monitors:
• EGR Monitor
• Misfire Monitor
• Fuel System Monitor
• Oxygen Sensor Monitor
• Oxygen Sensor Heater Monitor
• Catalyst Monitor
• Evaporative System Leak Detection Monitor
Following is a description of each system monitor,
and its DTC.
Refer to the appropriate Powertrain Diagnos-
tics Procedures manual for diagnostic procedures.
HEX 66, and 7A—OXYGEN SENSOR (O2S)
MONITOR
Effective control of exhaust emissions is achieved
by an oxygen feedback system. The most important
element of the feedback system is the O2S. The O2S
is located in the exhaust path. Once it reaches oper-
ating temperature 300° to 350°C (572° to 662°F), the
sensor generates a voltage that is inversely propor-
tional to the amount of oxygen in the exhaust. The
information obtained by the sensor is used to calcu-
late the fuel injector pulse width. This maintains a
14.7 to 1 air fuel (A/F) ratio. At this mixture ratio,
the catalyst works best to remove hydrocarbons (HC),
carbon monoxide (CO) and nitrous oxide (NOx) from
the exhaust.
The O2S is also the main sensing element for the
EGR, Catalyst and Fuel Monitors.
The O2S may fail in any or all of the following
manners:
• Slow response rate
• Reduced output voltage
• Dynamic shift
• Shorted or open circuits
Response rate is the time required for the sensor to
switch from lean to rich once it is exposed to a richer
than optimum A/F mixture or vice versa. As the sen-
sor starts malfunctioning, it could take longer to
detect the changes in the oxygen content of the
exhaust gas.
The output voltage of the O2S ranges from 0 to 1
volt. A good sensor can easily generate any output
voltage in this range as it is exposed to different con-
centrations of oxygen. To detect a shift in the A/F
mixture (lean or rich), the output voltage has to
change beyond a threshold value. A malfunctioning
sensor could have difficulty changing beyond the
threshold value.
HEX 67, 69, 7C, and 7D—OXYGEN SENSOR
HEATER MONITOR
If there is an oxygen sensor (O2S) DTC as well as
a O2S heater DTC, the O2S fault MUST be repaired
first. After the O2S fault is repaired, verify that the
heater circuit is operating correctly.
25 - 8
EMISSION CONTROL SYSTEMS
300M
DESCRIPTION AND OPERATION (Continued)
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