17 pin Toyota proprietary of Toyota 17 pin old diagnostic connector connector layout
17 pin Toyota proprietary connector
at the Toyota car
Used in some models produced after 1990


 

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
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