oldsmobile Workshop Repair Guides

Oldsmobile Workshop Service and Repair Manuals

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A/T - Revised Wiring Harnesses and Pressure Switches|Page 712 > < A/T - Revised Wiring Harnesses and Pressure Switches|Page 710

Cutlass L4-138 2.3L VIN A FI HP (1990)

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Figure 2 - Wiring Diagram

BULLETIN COVERS:

The 2nd, 3rd and 4th clutch circuit pressure switches will have "button-headed" wire connectors instead of blade type connectors for easier assembly at
the transaxle assembly plant and to reduce the chance of the connectors working loose. This change also requires new wiring harnesses. (See Figures 1,
and 2).

DATE OF PRODUCTION CHANGE:

Starting September 6, 1989 (Julian Date 249) some HYDRA-MATIC 4T60 (THM 440-T4) transaxles built using the new pressure switches and wiring
harnesses. Beginning in early November, 1989, all models have the new pressure switches and wiring harnesses.

A/T - Revised Wiring Harnesses and Pressure Switches|Page 712 > < A/T - Revised Wiring Harnesses and Pressure Switches|Page 710