1993-1995 3.4L Fuel Injection, VIN S |
13 |
Oxygen sensor voltage stays between 0.35 and 0.55 volts for 30
seconds when the TPS signal was above 3%. The engine had been operating in a closed loop
with an engine temperature above 185° F. |
14 |
Coolant temperature sensor signal indicates a temperature of over
275° F after the engine had been running for at least 20 seconds. |
15 |
Coolant temperature sensor signal indicates a temperature colder
than -38° F. |
16 |
Charging system voltage was below 8 volts for 2 seconds when engine
speed was above 1000 RPM. |
17 |
PCM did not detect any cam reference pulses for 3 seconds while
engine was running. |
21 |
TPS voltage was above 3.8 volts for 10 seconds when engine was
running. |
22 |
TPS voltage was under 0.2 volts for 3 seconds when the engine was
running at 400 RPM or more. |
23 |
Inlet air temperature sensor signal showed an air temperature of
-36° F for 25 seconds after engine had been running for at least 4 minutes. |
24 |
Vehicle speed sensor signal showed less than 3 MPH for 4 seconds
when engine speed was greater than 2000 RPM and transmission was not in park or neutral. |
25 |
Inlet air temperature sensor signal showed an air temperature of
over 297° F for 2 seconds when vehicle speed was greater than 1 MPH. |
28 |
Range signals "A" and "C" were both on for 2
seconds. |
33 |
MAP sensor signal voltage was too high (low vacuum) for 4 seconds
when throttle angle was between 3% and 30% and held steady. |
34 |
MAP sensor signal voltage was too low (high vacuum) for 2.5 seconds
when engine speed was less than 1200 RPM. |
35 |
Idle speed was either above or below desired idle by 300 RPM for 50
seconds. |
36 |
PCM did not detect 6 or more consecutive 24X (crank reference)
pulses. |
37 |
PCM did not receive the TCC brake signal 4 consecutive times when
vehicle speed went from above 35 MPH (for at least 10 seconds) to 0 MPH. |
39 |
Clutch switch has failed 4 consecutive times per ignition cycle when
vehicle speed went from 0 to at least 40 MPH and back to 0 again when engine was warm. |
41 |
The EST signal was present when the circuit should have been
grounded by the ignition module when it received bypass voltage under 1 volt. |
42 |
The EST signal did not change when the ECM applied bypass voltage to
the ignition module. |
43 |
The ECM detected knock sensor voltage above 4 volts or below 0.89
volts for 10 seconds during hard acceleration with engine speed between 3400 and 4400 RPM. |
44 |
Oxygen sensor voltage was under 0.28 volts for 60 seconds of closed
loop operation. |
45 |
Oxygen sensor voltage was over 0.75 volts for 60 seconds of closed
loop operation. |
46 |
Anti-theft pass key signal was out of range when the ignition was
turned to ON or START position. |
51 |
PROM error. |
53 |
Charging system voltage was greater than 16.5 volts for 10 seconds. |
54 |
Fuel pump voltage was less than 7 volts for 2 seconds since the last
reference pulse was received. |
58 |
Transmission fluid temperature sensor signal indicated a temperature
higher than 306° F for 1 second. |
59 |
Transmission fluid temperature sensor signal indicated a temperature
lower than -40° F for 1 second. |
61 |
A/C system charge was below the given value, or the system line was
open or grounded. |
63 |
Right Bank oxygen sensor voltage was between 0.35 and 0.55 volts for
30 seconds with throttle angle above 3%. The engine had been operating in a closed loop
with an engine temperature above 185° F. |
64 |
Right Bank oxygen sensor voltage was below 0.28 volts for 60 seconds
of closed loop operation. |
65 |
Right Bank oxygen sensor voltage was above 0.75 volts for 60 seconds
of closed loop operation when the throttle angle was between 6% and 20%. |
66 |
A/C refrigerant pressure sensor voltage was below 0.1 volt for 5
seconds when A/C was on. |
67 |
A/C refrigerant pressure did not change more than 9 psi when the A/C
clutch had been cycled. |
68 |
A/C compressor relay voltage was still applied for more than 10
seconds after the relay was disengaged by the PCM. |
69 |
A/C compressor relay did not show any voltage for 20 seconds after
the A/C was commanded ON by the PCM. |
70 |
A/C refrigerant pressure sensor voltage was above 4.9 volts for 5
seconds when A/C was ON. |
71 |
A/C evaporator temperature sensor indicated a temperature below 19°
F for 5 seconds. |
72 |
Vehicle speed sensor indicated a sudden change in transmission
output speed of more than 1000 RPM when vehicle was in gear. |
73 |
A/C evaporator temperature sensor indicated a temperature above 89°
F for 5 seconds. |
75 |
Digital EGR #1 solenoid failed 3 consecutive times. |
76 |
Digital EGR #2 solenoid failed 3 consecutive times. |
77 |
Digital EGR #3 solenoid failed 3 consecutive times. |
79 |
Transmission fluid temperature was over 295° F for 30 minutes. |
80 |
Transmission component slip speed was greater than 100 RPM for 10
seconds while vehicle was in 2nd, 3rd, or 4th gear and throttle angle was between 0% and
35%. |
82 |
3X reference pulses were not detected by PCM during cranking. |
85 |
PROM error. |
86 |
A/D multiplexer chip has shorted to system voltage for 15 seconds. |
87 |
PROM error. |
90 |
TCC solenoid voltage stayed high for 2 seconds after it was turned
ON by the PCM, or the TCC solenoid voltage was 0 volts for 2 seconds after it was turned
OFF by the PCM. |
93 |
Pressure control solenoid return amperage varied more than 0.16 amps
from the commanded amperage for at least 1 second. |
98 |
PCM error. Replace PCM. |
99 |
PCM error. Replace PCM. |
The Diagnostic Codes and Explanations are derived
from Manufacturer supplied Technical Data. WesTech does not guarantee the accuracy of this
Information nor can it be held liable for providing it. |