Part 2 of 2

Chart A-3 (2 Of 2):

Ignition System Circuit:

CIRCUIT DESCRIPTION:

Before using this chart, battery condition, engine cranking speed, and fuel quantity should be checked and verified as being OK.

TEST DESCRIPTION: The numbers below refer to circled numbers on the diagnostic chart.

1. This step checks for ignition voltage at the injector harness connector. Disconnect harness connector before probing terminal "B." Reconnect connector after test.

2. Checks for open in BLU/WHT wire or BLU/YEL wire from connector to ECM. Be sure injector harness is connected.

DIAGNOSTIC AIDS:

^ The peak and hold wires have no useable purpose and will not affect the injector circuits if open and/or shorted.