
52
1994
Model System Page
Astro 8 88
Blazer 7 or 8
See note below
Bravada 8 88
C Series
Pickup Truck 7 or 8
See note below
DeVille 4 68
Eldorado 4 68
G Series Van 8 88
Jimmy 8 88
K Series
Pickup Truck 7 or 8
See note below
S Series
Pickup Truck 7 or 8
See note below
Safari 8 88
Seville 4 68
Sierra 8 88
Sonoma 8 88
Suburban 8 88
T Series
Pickup Truck 7 or 8
See note below
Yukon 8 88
NOTE:
Two different ABS systems were available for this vehicle. Each
system has a different code reading procedure. Do the following to identify
which system is installed:
• Examine the Electro-Hydraulic Control Unit (EHCU). This assembly has
both electrical and hydraulic connections. It is installed between the
master cylinder and the wheel caliper (or cylinder).
–If there are 5 hydraulic connections (2 inlet, 3 outlet), then vehicle has
System 8. Go to page 88.
–Less than 5 hydraulic connections means vehicle has System 7.
Go to page 84.
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