A-3 Addressing Problem

Chart A-3:

OSM Adress Error:

DESCRIPTION:

Code L202, along with L203, L206, or L210 indicates a loss of power to an OSM address pin. When such an addressing failure exists on pin F of OSM #3, pin D of OSM #6, or pin C of OSM #10, its address becomes the same as that of OSM #2. Therefore, when the BCM sends a command on the data line to OSM #2, both OSM #2 and the mis-addressed OSM try to respond resulting in a lighting fault. During such an addressing failure when the BCM sends a command to the mis-addressed OSM, a lighting fault occurs because there isn't an OSM available to respond to the command. The table below lists the CCDIC messages and symptoms of these conditions.

CCDIC Messages:

L202 AND L203:
1. Left Brake/Turn/Tail Lamps Out

L202 AND L206:
1. Right Brake/Turn/Tail Lamps Out
2. Left Brake/Turn/Tail Lamps Out

L202 AND L210:
1. Left Brake/Turn/Tail Lamps Out
2. Left Front Turn/Park/ Fog Lamps Out
3. Left High Beam Out

SYMPTOMS:

L202 AND L203:
1. All left rear lamps Intermittent.
2. Left turn signal indicator and hazard indicators operate Intermittently.

L202 AND L206:
1. Right turn left turn and hazard indicators do not flash.
2. Close inspection shows right inner tail lamps and left outer tail lamps are out.

L202 AND L210:
1. Activating high beams yields left low beam substituting for left high beam.
2. Left turn signal and hazard indicators do not flash.
3. Close inspection shows two outer tail lamps out.