Question 1
Which pins of the DLC should be connected in order to retrieve "flash" codes from a GM OBD I PCM?
◦ A and B
◦ A and C
◦ D and E
◦ A and D
Question 2
Which step should be performed LAST when diagnosing an engine performance problem?
◦ Checking for any stored diagnostic trouble codes
◦ Checking for any technical bulletins
◦ Performing a thorough visual inspection
◦ Verifying the repair