What kind of problem does a 93-95 Chevy Van have?

Wiring open circuit/short circuit to ground, supply wire, transmission internal wiring, TCC solenoid, transmission mechanical fault, ECM

What are the diagnostic codes for a Chevy?

1 Refer to our Generic OBD II code list for definitions on all other Chevy diagnostic trouble codes. 2 Manufacturer Specific Codes 3 P0342 4 P1031 5 P1032 6 P1105 7 P1106 8 P1107 9 P1108 10 P1109

What does code 12 mean on GM OBD?

The system will enter the diagnostic mode. In this mode, the computer will display a Code 12, three consecutive times, by flashing the “CHECK ENGINE”, “SERVICE ENGINE SOON” or “MALFUNCTION INDICATOR LAMP” or light. A Code 12 consists of one flash, a short pause, then two flashes in rapid succession.

What is the code for service engine soon?

In this mode, the computer will display a Code 12, three consecutive times, by flashing the “CHECK ENGINE”, “SERVICE ENGINE SOON” or “MALFUNCTION INDICATOR LAMP” or light. A Code 12 consists of one flash, a short pause, then two flashes in rapid succession. 2.

Wiring open circuit/short circuit to ground, supply wire, transmission internal wiring, TCC solenoid, transmission mechanical fault, ECM

Where do I find the trouble code on my Chevy?

These are listed in numerical order for easy searching. When retrieving Chevy trouble codes with an OBD II scan tool, proceed as follows: 1. Connect scan tool to the 16-pin data link connector (DLC) located underneath the steering column. The connector may have a removable cover. 2. Turn the ignition on. 3.

What is the diagnostic code for a Chevy check engine light?

Remember, these are manufacturer specific codes only. Refer to our Generic OBD II code list for definitions on all other Chevy diagnostic trouble codes. Manufacturer Specific Codes P0342Camshaft Position Sensor A Bank 1 Low Input – Related Information P1031HO2S Heater Current Monitor Control Circuit Sensors 1

Where can I Find my GM trouble code?

If you own a 1982 to 1995 GM car or truck, you just might be able to read your trouble codes for free! If you have a connector like this under your dash, read on… (note: this connector may have a black plastic cover over it, so also look for a cover shaped like this, sorry for the messy wires here)

Where is the DLC on a GM 94?

Locate Data Link Connector (DLC), see image below. Turn Ignition switch to ON position. Count the flashes on the “ CHECK ENGINE ” or “ SERVICE ENGINE ” light. NOTE: Some 94 & 95 models do not have the B terminal. In which case a scanner is required.

What is trouble code 12 on a GM car?

Trouble Code 12 is a special case code that is not logged into the ECM’s Non-Volatile Memory (NVM) when detected. When the ignition is ON and the ECMdetects no ignition reference pulses coming from the ignition module, it illuminates the Service Engine Soon lamp.

What does GM code 12 no distributor pulses mean?

GM Code 12 No Distributor Pulses. Trouble Code 12 is a special case code that is not logged into the ECM’s Non-Volatile Memory (NVM) when detected. When the ignition is ON and the ECM detects no ignition reference pulses coming from the ignition module, it illuminates the Service Engine Soon lamp.

Why does my GM OBD not Flash code 12?

The engine will not run with a “hard” code 12 set Chances are you will never need to diagnose a code 12. Rather, the problem would be a crank, no-start condition. If code 12 does not flash, that would indicate a communication problem with the ECM. Code 12 does not show when reading codes with a scan tool.