Lighting - No Interior Lights when Opening Unlocked Door
File In Section: 8 Chassis/Body ElectricalBulletin No.: 83-82-O6A
Date: July, 1998
Subject:
No Interior Lights when Opening Unlocked Door in Low Light Conditions (Replace with new PZM)
Models:
1998 Cadillac Deville - Built Prior to VIN Breakpoint 771492
1998 Cadillac Eldorado - Built Prior to VIN Breakpoint 613048
This bulletin is being revised to add part information, artwork and labor time. Please discard Corporate Bulletin Number 83-82-06 (Section 8 - Chassis/Body Electrical).
Condition
Some customers may comment that the interior lights do not come on when opening a door in low light conditions, if the vehicle is not locked and the RKE transmitter or key cylinder is not activated prior to opening the door.
Cause
During electrical system wake-up, the Body Control Module (PZM) requires the photo cell data (ambient light) sooner than the Instrument Cluster (IPC) can provide it.
Correction
Replace with the new PZM (Figure 1, Item 6). This corrects the interior lighting issue by changing the software algorithm.
Parts Information
P/N Description
9359396 Body Control Module (PZM)
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation Description Labor Time
N4801 Computer Control Body - 0.6 hr
Replace