1 Drive vehicle until it reaches operating temperature.
2 Stop the vehicle, place it in park or neutral and turn ignition OFF.
2 Attach a switch or jumper wire to act as a switch,
(Click here for details), between the connector as shown and earth.
3 Switch on the ignition.
4 Close the accessory switch for between 1 and 4 seconds.
5 Open the switch, the Check Engine Light (CEL) (Check Engine Light) will now illuminate for 2.5 seconds, then display fault code.
NOTE - only one code can be read at a time, to access the next code, repeat instructions 4 & 5.
6 Read codes as described in the Code Format Description below.
7 Press the continue button to enter the code numbers and get the code description(s).