Diagnostic Test Mode No. 2 (Function Testing)
Press test button 2 times to activate test mode No. 2. LED should flash rapidly. ECU should deliver an acknowledgment code when a signal is received from the following:
- 1-4-1 - VSS (as flywheel rotates).
- 3-4-2 - CMP (as camshaft rotates).
- 3-4-3 - Speedometer (as front wheels rotate).
- 3-4-4 - Fuel injection ECU (when throttle switch is operated by opening throttle).