9-22 ELECTRICAL SYSTEM Operation When the ignition switch is turned ON with the engine stop switch in ON, the immobi-antenna and ECM are powered ON. The ECM transmits a signal to the transponder through the immobi-antenna in order to make comparison between the key ID and ECM ID. With the signal received, the transponder transmits the key ID signal to ECM so that ECM can make com- parison with its own ID, and if it matches, the engine is made ready to start. Transponder Immobi-antenna Ignition switch ECM E Also, when the ignition switch is turned ON, the indicator light L flashes as many as the number of IDs registered in ECM. There- Flashing Lighting P after, if the IDs are in agreement, the indicator light turns on for 2 registered Normal two seconds to notify of completion in successful communica- 3 registered Normal tion. M 4 registered Normal If the indicator light (LED) flashes fast, it notifies of communica- A Abnormal tion error or disagreement of ID. S Fast flashing Approx. 1.6 sec. Approx. 2.0 sec. NOTE: If the indicator light flashes fast, turn the ignition switch OFF then ON to make judgment again as there is possible misjudg- ment due to environmental radio interference.  When the battery performance is lowered in winter (low temperature), the system may at times makes a Indicator light re-judgment at the time of beginning the starter motor operation. In this case, the indicator light operation starts immediately after the starter operation. NOTE: In the case that the LED flashes fast, remains lit or unlit, the probable cause of such a failure may be due to abnormal condition in the key, key cylinder, wiring harness or ECM. (If such a failure exists, contact your dis- tributor or dealer.)