Technical Procedure

INSPECTION

1. Raise hood and remove the three plastic radiator cover retaining screws and four plastic retaining clips to gain access to the forward discriminating sensor.

2. With your hand, feel the routing of the pigtail harness where it attaches to the forward discriminating sensor. Harness should go straight across the front towards the driver's side of the vehicle with no reversing loop (see enclosed illustration). Harness should have some slackness --

^ If harness is properly routed, proceed to Step 4.
^ If harness routing needs correction, proceed to Step 3.

REPLACEMENT

3. Follow the remaining instructions and cautions for replacing the forward discriminating sensor in the 1990 Riviera/Reatta Service Manual, pages 9J-B-1 through 3. See enclosed illustration with this bulletin for proper routing of the pigtail harness. Tamper resistant torx insert bit referred to in the Service Manual as OO-T27H is essential tool J-38597.

4. Install campaign identification label and close hood.