Actron GM Code Scanner CP9001 - Manual (Page 64)

64
SYSTEM 3:
Bosch 2U (Version B)
1991 Brougham, Eldorado, Reatta, Riviera, Seville, Toronado, Trofeo
1992 Eldorado, Riviera, Seville, Toronado, Trofeo
1993 Riviera
Pre-Diagnostic Visual Inspection
Complete all steps before reading
trouble codes!
1) Check that all ABS system
grounds are clean and tight.
• 1991 Brougham, Eldorado, Reatta,
Riviera, Seville, Toronado, Trofeo:
–Check the ground that is located
behind the right headlight.
–Check the ground that is located
near the parking brake pedal on
the left side of the dash.
• 1992 Eldorado, Seville:
–Check the ground that is located
on the engine near the alternator.
–Check the ground that is located
on the rear seat brace.
• 1992 Riviera, Toronado, Trofeo:
–Check the ground that is located
behind the right headlight.
–Check the ground that is located in
the right front engine compart-
ment.
• 1993 Riviera:
–Check the ground that is located
behind the right headlight.
–Check the ground that is located
on top of the left shroud.
2) Check power sources which
supply various parts of ABS
system.
• 1991 Brougham:
–Check the GA-TRANS fuse in the
underdash fuse block.
–Check the ABS fuse in the
underdash fuse block.
–Check the rust colored fusible link
E on the positive junction block.
• 1991 Eldorado, Seville:
–Check fuse number 7 in the
interior relay center.
–Check the black and blue colored
fusible links on the positive
junction block.
• 1991 Reatta, Riviera:
–Check fuse number 4 in the
interior relay center.
–Check the black and blue colored
fusible links on the positive
junction block.
• 1991 Toronado, Trofeo:
–Check fuse number 18 in the
underdash fuse block.
–Check the black M and blue U
colored fusible links on the positive
junction block.
• 1992 Eldorado, Seville:
–Check the A1 fuse in the trunk
compartment fuse block.
–Check fuse number 5 in the
RIGHT MAXI fuse block.
–Check fuse number 6 in the
RIGHT MAXI fuse block.
• 1992 Riviera:
–Check fuse number 4 in the
interior relay center.
–Check the black and blue colored
fusible links on the positive
junction block.