1994-1995 3.1L Fuel Injection, VIN M |
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 149° F. |
14 |
Coolant temperature sensor signal indicates a temperature of over
275° F after the engine had been running for at least 10 seconds. |
15 |
Coolant temperature sensor signal indicates a temperature colder
than -38° F for 2 seconds. |
16 |
Charging system voltage was below 8 volts for 5 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 5 seconds when engine was
running above 600 RPM. |
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 4 minutes. |
24 |
Vehicle speed sensor signal showed less than 5 MPH for 4 seconds
when engine speed was greater than 3000 RPM and transmission was not in park or neutral. |
25 |
Inlet air temperature sensor signal showed an air temperature over
297 F for 5 seconds when I vehicle speed was greater than 1 MPH. |
28 |
Transaxle range switch had incorrect signal for 10 seconds. |
32 |
Digital EGR calibrated response in manifold pressure was not seen by
ECM. |
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 above 500 RPM. |
35 |
Idle speed was either above or below desired idle by 350 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. |
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 4.6 volts or below 0.84
volts for 10 seconds during hard acceleration with engine speed between 3400 and 4400 RPM. |
44 |
Oxygen sensor voltage was under 0.25 volts for 60 seconds of closed
loop operation. |
45 |
Oxygen sensor voltage was over 0.75 volts for 60 seconds of closed
loop operation. |
51 |
PROM error. |
53 |
Charging system voltage was greater than 16.5 volts. |
54 |
Fuel pump voltage was above 14 volts or less than 7 volts for 3
seconds. |
72 |
Vehicle speed sensor indicated a sudden change in speed of more than
33 MPH in 2 seconds when vehicle was in gear. |
75 |
Digital EGR solenoid 1 failed 3 consecutive times. Engine speed was
between 1400 and 2000 RPM when throttle angle was 0% and the MAP sensor showed high
manifold vacuum. |
76 |
Digital EGR solenoid 2 failed 3 consecutive times. Engine speed was
between 1400 and 2000 RPM when throttle angle was 0% and the MAP sensor showed high
manifold vacuum. |
77 |
Digital EGR solenoid 3 failed 3 consecutive times. Engine speed was
between 1400 and 2000 RPM when throttle angle was 0% and the MAP sensor showed high
manifold vacuum. |
82 |
3X reference pulses were not detected by PCM during cranking. |
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. |
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. |