198002742 - 5560BV Check the instrument panel power supply
With an Examiner connected in Voltmeter mode, with the positive probe at pin 3 and the negative probe earthed at pin 1 and with the ignition key to MAR, check for a voltage reading of 12 Volts
When an Examiner is connected in Voltmeter mode with the positive probe at pin 2 and the negative earthed, check for a voltage reading of 12 Volts