Description of On-Board Diagnostics

On Board Diagnostic Results Indicator Lamp





The interior lamp and step lamps (front seats) act as the indicators for the on board diagnosis. These lamps blink simultaneously in response to diagnostic results.





NOTE:
^ When on board diagnosis is operating, some systems under IVMS control do not operate.
^ The step lamp of malfunctioning LCU does not blink.

MODE I (IVMS COMMUNICATION DIAGNOSIS)





How To Perform Mode I





Description
In this mode, a malfunction code is indicated by the number of flashes from the front map lamps and step lamps as shown in the diagram:
After indicator lamp turns on for 2 seconds then off for 2 seconds, it flashes [cycling ON (0.5 sec.)/OFF (0.5 sec.)] to indicate a malfunction code of the first digit. Then, 1 second after indicator lamp turns off, it again flashes [cycling ON (0.5 sec.)/OFF (0.5 sec.)] to indicate a malfunction code of the second digit.
For example, the indicator lamp goes on and off for 0.5 seconds twice and after 1.0 second, it goes on and off for 0.5 seconds four times. This indicates malfunction code "24".





Malfunction Code Table

MODE II (IVMS COMMUNICATION DIAGNOSIS)





How To Perform Mode II





Description
In this mode, when Body Control Module (BCM) detects the input signal from a switch in IVMS as shown in the diagram, the detection is indicated by the interior lamp and front step lamps with buzzer.








Switch Monitor Item