DR-27C Checking Wires to Logic Module
1. Turn ignition switch Off and connect throttle body 6-way electrical connector, then disconnect red module connector.
2. Connect an ohmmeter between terminal Nos. 18 and 22 of red connector.
3. If ohmmeter is showing some resistance, replace logic module.
CAUTION: Before replacing the logic module make sure the terminals in cavities 18 and 22 are not crushed so that they cannot touch the logic module pins.
4. If ohmmeter indicates an open circuit, check for open circuit in wiring to throttle body 6-way electrical connector.