IMAGER Shim Adjustment

WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: The following adjustment procedure is used to adjust the SmartBeam imager (camera) ONLY after the SmartBeam Calibration Procedure has resulted in a "High Beam Camera Alignment Performance Fault - Left, Right, Top or Bottom" Diagnostic Trouble Code (DTC) or a combination of any two of these faults being set. The imager is assembled to a mounting bracket on the inside rear view mirror with four screws. Four stepped plastic shims along with an integral plastic tree that joins them are factory assembled between the mounting bracket and the imager at the time of manufacture, a single shim at each screw location. The following procedure details the proper procedure for repositioning the appropriate shims to correct each fault or combination of faults. However, retrieval and erasure of the DTC to complete and verify the procedure will require the use of a diagnostic scan tool. Refer to LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS .

Fig 1: Identifying Rear View Mirror Rear Cover, Screws & Head

Courtesy of DAIMLERCHRYSLER CORP.

Using a diagnostic scan tool, read and record the SmartBeam (also referred to as the Automatic High Beam Module/AHBM) Diagnostic Trouble Code (DTC) data. Refer to LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS .
Adjust the inside rear view mirror head (3) downward far enough to access and remove the two screws (2) that secure the rear cover (1) to the imager housing.
Adjust the mirror head up toward the headliner to its uppermost position.
Unsnap and pull the upper edge of the rear cover away from the imager housing far enough to disengage the tabs at the lower edge of the cover, then remove the cover from the housing.
NOTE: If more than one High Beam Camera Alignment Performance Fault DTC was retrieved, then the appropriate screws should be loosened and their shims relocated for both of the two faults as outlined in the following steps. One screw and one shim will be common to both of the faults. In this case, the total amount of available correction will be slightly diminished from that available for a single fault but, in most cases, this action should result in a sufficient amount of correction to remedy both fault conditions.

Fig 2: Image Adjustment Components
Courtesy of DAIMLERCHRYSLER CORP.

Carefully cut the plastic tree for the shims (2) at the appropriate location or locations for the fault or fault combination as shown in the preceding graphic and listed in the Imager Adjustment Table that follows.

IMAGER ADJUSTMENT TABLE
High Beam Camera Alignment Performance Fault	Shim Tree Cut Location(s) - (Boxed Numbers In Graphic)	Shim Screw Locations - (Circled Letters In Graphic)
Right	(1)	(A) & (D)
Left	(1)	(B) & (C)
Top	(3) & (4)	(A) & (B)
Bottom	(2) & (5)	(C) & (D)

Locate those screws on the rear view mirror bracket (1) at the appropriate locations for the fault or fault combination as shown in the preceding graphic and listed in the preceding Imager Adjustment Table, then loosen each of those screws one-half turn (counterclockwise).
Slide the shim beneath each of the loosened screws to its most outboard position.
Tighten each of the loosened screws to secure the imager and shims to the mirror bracket. Tighten the screws to 0.8 N.m (7 in. lbs.).
Engage the tabs at the lower edge of the rear cover to the bottom of the imager housing. Be certain that the imager wiring is held against the mirror bracket, then snap the upper edge of the cover into place on the housing.
Install and tighten the two screws that secure the rear cover to the imager housing. Tighten the screws to 0.7 N.m (6 in. lbs.).
Use the diagnostic scan tool to erase any SmartBeam DTC data. Refer to LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS .
The SmartBeam calibration procedure should be performed following any imager shim adjustment procedure. (Refer to ELECTRICAL/LAMPS/LIGHTING - EXTERIOR/SMARTBEAM - STANDARD PROCEDURE - SMARTBEAM CALIBRATION) .