Correct Power Source
- With ignition switch and control switch off, all test lamps should be off. If any lamp is on, check that Brown (7) wire is connected directly to source of voltage, and check for bad control switch. With ignition switch off, and control switch on, lamps 2 and 3 should be on, lamps 1, 4, 5 and 6 should be off.
- If lamp 2 is off, check speed sensor continuity, check speed sensor terminals to Gray and Dark Blue wires, check terminals 2, 3, 5 and 7 (Gray, Dark Blue and Light Green wires are not grounded). If lamp 3 is off, check brake light switch, check all Brown, Light Blue and Light Green wire connections.