1988-1990 3.8L Fuel Injection, VIN C |
13 |
Oxygen sensor voltage stays between 0.35 and 0.55 volts for 30
seconds when the TPS signal was above 0.55 volts. The engine had been running for at least
40 seconds at normal engine temperature. |
14 |
Coolant temperature sensor signal indicates a temperature of over
282° F for 0.4 seconds after the engine had been running for at least 10 seconds. |
15 |
Coolant temperature sensor signal indicates a temperature colder
than -40° F for at least 2 seconds. |
16 |
Charging system voltage was above 16 volts. |
21 |
TPS voltage was above 2.5 volts for 5 seconds when engine was
running and air flow was less than 15 gm/sec. |
22 |
TPS voltage was under 0.2 volts for 4 seconds when the engine was
running. |
23 |
Manifold air temperature sensor signal showed an air temperature of
40° F for 4 seconds. |
24 |
Vehicle speed sensor signal showed less than 3 MPH for 40 seconds
when vehicle was in 4th gear. |
25 |
Manifold air temperature sensor signal showed an air temperature
over 283° F for 16 seconds when vehicle speed was greater than 35 MPH. |
26 |
Quad-Driver sense voltage shows a low voltage when battery voltage
should be present, or if the sense voltage shows battery voltage when a low voltage should
be present for at least 5 seconds when the engine was running. |
27 |
2nd gear switch was closed or grounded when vehicle was in 4th gear,
or 2nd or 4th gear switch was open when engine was first started. |
28 |
3rd gear switch was closed or grounded when vehicle was in 4th gear,
or 3rd or 4th gear switch was open when engine was first started. |
29 |
4th gear switch was closed or grounded when vehicle was in 4th gear,
or 4th gear switch was open when engine was first started. |
31 |
Park/Neutral switch was grounded when vehicle was in gear, or
Park/Neutral switch was open when vehicle was first started, or the 4th gear switch has an
intermittent open. |
34 |
There was no MAF signal for over 4 seconds while engine was running. |
38 |
Vehicle speed went from above 35 MPH to 0 several times without a
brake input signal. |
41 |
Cam sensor signal was not received by PCM for the last 2 seconds
while engine was running. |
42 |
The EST signal did not change when the ECM applied bypass voltage to
the ignition module. |
43 |
Knock sensor signal was either above 3.5 volts or below 1.5 volts
for at least 5 seconds. |
44 |
Oxygen sensor voltage was under 0.2 volts for up to 4 1/2 minutes of
closed loop operation. |
45 |
Oxygen sensor voltage was over 0.7 volts for 30 seconds in closed
loop operation with a throttle angle between 0.54 and 2.08 volts after engine had been
running for 1 minute. |
46 |
Power steering switch was closed for 25 seconds or more when vehicle
speed was above 40 MPH. |
47 |
Momentary loss of power to Body Computer Module (BCM). |
51 |
MEM-CAL error. |
58 |
Security system pass key signal was out of range when the ignition
was turned to On or Start position. |
63 |
Incorrect EGR operation. |
64 |
Incorrect EGR operation. |
65 |
Incorrect EGR operation. |
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. |