U2: Check OD/TRIP Switch

With the ignition key in the OFF position, reconnect the MCCA connector and the instrument cluster. Disconnect the instrument cluster connector C3. Turn the ignition key to the ON position, depress the OD/TRIP switch on the MCCA. Measure the voltage on the Red/Blue wire at terminal No. 13 of the instrument cluster connector C3. See WIRING DIAGRAMS  . Is the voltage greater than 10 volts with OD/TRIP switch depressed? If yes, replace the instrument cluster. If no, replace the MCCA.