Pin |
Function |
TE1 | Engine self-diagnostic codes |
E1 | Engine self-diagnostic codes. E1 is the common ground for the Ecu's self diagnosis when attached, will access trouble codes on OBD1 toyota cars |
W | Engine self-diagnostic codes. W is aself diagnosis for the warning light circuit inside the vehicle gray cover underhood connecter by using a jumper wire to check weather the warning and the check engine lamp and wiring circuit are okay for proper functioning which means a self check for the complete warning circuit integrity for this OBD1 |