20 Battery Sensing Circuit (Code 16)
1. Turn the ignition switch off. Disconnect the black connector from the logic module.
2. Connect a voltmeter to cavity No. 22 of the logic module black connector and ground.
3. If voltmeter reads within one volt of battery voltage, replace the logic module.
CAUTION: Before replacing the logic module, make sure the terminal in cavity No. 22 is not crushed so that it cannot touch the logic module pin.
4. If voltmeter reads 0 volts, repair the wire of cavity No. 22 for an open circuit to the wiring harness splice.