GM OBD/OBD2 Codes >> GM 92-95 3.8L VIN L

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92-95 3.8L VIN L
13Oxygen 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 with an engine temperature above 110° F.
14Coolant temperature sensor signal indicates a temperature of over 284° F for 4 seconds after the engine had been running for at least 10 seconds.
15Coolant temperature sensor signal indicates a temperature colder than -36° F for at least 4 seconds after the engine had been running for 2 seconds.
16Charging system voltage was either below 9 volts or above 17 volts for 10 seconds.
17PCM did not detect any spark reference pulses within 240 fuel control reference pulses (80 crank revolutions) while engine was running below 1200 RPM.
21TPS voltage was above 0.8 volts for 5 seconds when engine was running and air flow was less than 15 gm/sec, or the TPS voltage was over 4.8 volts at any time.
22TPS voltage was under 0.2 volts for 4 seconds when the ignition was on.
23Inlet air temperature sensor signal showed an air temperature of -29° F for 4 seconds.
24Vehicle speed sensor signal showed less than 3 MPH for 2 seconds when engine speed was greater than 3000 RPM and transmission has not been in park or neutral for more than 4 seconds. Or vehicle speed goes from above 18 MPH to 0 in less than 2 seconds without applying brake.
25Inlet air temperature sensor signal showed an air temperature of over 218° F for 5 seconds when vehicle speed was greater than 35 MPH.
26Quad-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.
272nd gear switch was closed or grounded for 10 seconds when vehicle was in 4th gear, or 2nd or 4th gear switch was open when engine was first started.
283rd gear switch was closed or grounded for 10 seconds when vehicle was in 4th gear, or 3rd or 4th gear switch was open when engine was first started.
294th gear switch was closed or grounded for 10 seconds when vehicle was in 4th gear, or 4th gear switch was open when engine was first started.
31PRNDL indicates a gear other than park or neutral for 13 seconds for 3 consecutive startups when ignition was on, engine was off and vehicle speed was 0. Or the PRNDL status indicators (A, B, C, P) showed an incorrect combination of Lo and Hi for more than 10 seconds.
34There was no MAF signal for over 4 seconds while engine was running.
36Transmission solenoid "B" has failed in the Off position which caused transmission to be in 3rd when 1st gear was desired, or solenoid "B" failed in the On position which caused transmission to be in 1st when 3rd gear was desired.
38The Torque Converter Clutch portion of the brake switch was open and caused the TCC to be inoperative.
39The Torque Converter Clutch portion of the brake switch was inoperative for 30 seconds causing vehicle speed ratio to be outside of its window of operation.
41Cam sensor signal was not received by PCM for the last 5 seconds while engine was running.
42The EST signal did not change when the ECM applied bypass voltage to the ignition module.
43Knock sensor signal was either above 3.5 volts or below 1.5 volts for at least 20 seconds.
44Oxygen sensor voltage was under 0.25 volts for up to 4 1/2 minutes of closed loop operation.
45Oxygen sensor voltage was over 0.75 volts for 2 minutes in closed loop operation with a throttle angle between 0.6 and 1.9 volts.
47Momentary loss of power to Body Computer Module (BCM). Check that PROM is fully seated. (1993 Riviera only)
51MEM-CAL error.
54EGR #2 solenoid was out of range for 6 of 8 tests.
55EGR #3 solenoid was out of range for 3 of 5 tests.
56Quad-driver voltage was incorrect for 5 seconds on the circuit connected to QDM "B".
57Boost control solenoid did not open bypass valve causing engine torque to be too high.
63EGR flow was incorrect. EGR solenoid did not work properly.
64EGR flow was incorrect. EGR solenoid did not work properly.
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