How many blinks are in DTCs 1 through 9?

DTCs one through nine are indicated by individual short blinks. DTCs 10 and above are indicated by long and short blinks. One long blink is equivalent to 10 short blinks.

How to count the flashes of an OBD1 code?

Count the flashes. There will be a longer pause between the codes if you have several trouble codes and a shorter pause between the digits of the trouble codes. For example, code 16 = 1 flash * Pause * 6 flashes. When all trouble codes are outputted, it will flash the code 12 – 1 flash * Pause * 2 flashes.

What do the flashing numbers on a DTC mean?

Diagnostic Trouble Codes (DTCs) will be indicated by a series of long and short flashes on MIL. The number of long flashes indicates the number in the 10s column. The number of short flashes indicates the number in the 1s column.

How long does it take for a Toyota OBD light to blink?

The light blinks only (.5 second ON, .5 second OFF) when indicating a number. The light will be OFF for 1.5 seconds between the first digit and the second digit of the code.

What causes a code 33 on an OBD?

33 – MAP sensor circuit error (signal high indicating low vacuum) Engine running rich (too much fuel, black smoke from exhaust) Due to erratic engine vacuum, other engine performance problems can cause a code 33 to set

How to read GM OBD diagnostic codes for free?

How to read the codes 1 Ground terminals A and B (see diagram below) with the ignition “ON” and engine not running. The system will enter the… 2 After Code 12 is displayed, any stored trouble codes will be displayed by flashing the “CHECK ENGINE”, “SERVICE… More

What does the code 16 on a check engine light mean?

The check engine light will begin to flash. Count the flashes. There will be a longer pause between the codes if you have several trouble codes and a shorter pause between the digits of the trouble codes. For example, code 16 = 1 flash * Pause * 6 flashes.