Trouble Diagnoses — Self-diagnosis Description
EF & EC-64prose procedureMode I and Mode II apply only for model with catalyzer.
Self-diagnosis — Description
The self-diagnosis is useful to diagnose malfunctions in major sensors and actuators of the E.C.C.S. system. There are 5 modes in the self-diagnosis system.
IMPORTANT
Mode I and Mode II apply only for model with catalyzer.
Self-diagnosis Modes
- 1Mode I — Mixture ratio feedback control monitor A • During closed loop condition: The green inspection lamp turns ON when lean condition is detected and goes OFF by rich condition. • During open loop condition: The green inspection lamp remains ON or OFF.
- 2Mode II — Mixture ratio feedback control monitor B The green inspection lamp function is the same as Mode I. • During closed loop condition: The red inspection lamp turns ON and OFF simultaneously with the green inspection lamp when the mixture ratio is controlled within the specified value. • During open loop condition: The red inspection lamp remains ON or OFF.
- 3Mode III — Self-diagnosis This mode is the same as the former self-diagnosis in self-diagnosis mode.
- 4Mode IV — Switches ON/OFF diagnosis During this mode, the inspection lamps monitor the switch ON-OFF condition. • Idle switch • Ignition switch "START" • Vehicle speed sensor
- 5Mode V — Real-time diagnosis The moment the malfunction is detected, the display will be presented immediately. That is, the condition at which the malfunction occurs can be found by observing the inspection lamps during driving test.