big2bird
Well-known member
Okay, from a Snap-on Scanner book.
Connect pos. lead of voltmeter to pin E, (far left), connect neg. lead to batt - term. Should read .1 volt or less
To test for open ground, jumper D to E, then reread voltage. Should read 50 millivolts. If 5 volts, ground is open.
Pin D should read 5 volts to ground. Pin B should read .7 volts to ground This voltage will rise when engine is running and check engine light goes out.
Important. The pins are ABCDE, right to left as viewed thru the ashtray. You will see a notch between D and E.
Connect pos. lead of voltmeter to pin E, (far left), connect neg. lead to batt - term. Should read .1 volt or less
To test for open ground, jumper D to E, then reread voltage. Should read 50 millivolts. If 5 volts, ground is open.
Pin D should read 5 volts to ground. Pin B should read .7 volts to ground This voltage will rise when engine is running and check engine light goes out.
Important. The pins are ABCDE, right to left as viewed thru the ashtray. You will see a notch between D and E.
