DR-11A Checking For No Code 88

1. With diagnostic readout box disconnected from engine harness connector, connect a voltmeter to cavity 4 of engine harness connector and ground, then turn the ignition switch to the Run position.
2. If voltmeter reads between 4 and 5 volts, proceed to Step B. If voltmeter is not reading between 4 and 5 volts, proceed to Step C.

DR-11B Checking For No Code 88

DR-11C Checking For No Code 88