Defect Code 91

Defect Code 91:

Malfunction: Lighting of EDC Program Selection Buttons Defective:

Possible effect of defect: Function light of selected program does not operate. Search light (light switched on) does not operate.

Troubleshooting: Check EDC program switch with lighting unit by activating as described in the test procedure section in the diagnostic program. Does lighting operate?

If no, check following wires and repair if necessary: From 26-pin control unit connector Pins 2, 6, 7, 17 to the EDC program selector switch. Is defect rectified?

If no, check wire and repair if necessary: From 10-pin control unit connector Pin 10 to terminal 56 k. If defect is not rectified, check wire from EDC program switch connector to linking connector and repair if necessary.