09-13-2014, 07:22 AM
Join Date: May 2014
Location: Silverton, OR
My poor choice of words.
Scanning is counting the flashes and here are the instructions:
To translate the codes on the EFI model. turn on the ignition switch and make sure that the "Check Engine" light comes on. While ignition switch is on, insert a spare fuse into the DIAG slot in the fuse panel. Observe the "Check Engine" light. It will flash out any stored trouble codes.
The trouble codes are communicated as a series of flashes on the "Check Engine" light. The codes are two digits, which are communicated as a group of .03 second flashes, with a .03 second pause between the flashes, and a 1 second pause between digits. The code will repeat itself three times, with a 3 second pause between repetitions, then it will continue to the next code (if any).
So...if one dot is equal to .1 second (for the purpose of putting this pattern into writing), and you saw FLASH...FLASH.........FLASH, it would read 21.
13 O2 Sensor
14 Water (Coolant) Temperature Sensor
15 Water (Coolant) Temperature Sensor
21 Throttle Position Sensor
22 Throttle Position Sensor
23 Air Temperature Sensor
25 Air Temperature Sensor
24 Vehicle Speed Sensor
31 Pressure Sensor (MAP)
32 Pressure Sensor (MAP)
41 Ignition Signal
42 Crank Angle Sensor
44 Idle Switch (TPS)
45 Idle Switch (TPS)
51 EGR System (California Only)
53 Ground Circuit (California Only)
54 5th Gear Switch (Non-California Only)
71 Test Switch Terminal
Steady ON ECM
12 Normal (No Trouble Codes Detected)