SERVICE MANUAL UPDATE SEC.6E3 REVISED RESISTANCE VALUES

Subject: REVISED RESISTANCE VALUES/CODES 34, 35

Model and Year: 1990 GEO STORM WITH 1.6L ENGINE

TO: ALL CHEVROLET DEALERS

This bulletin serves to revise the 1990 Geo Storm 1.6L SOHC and DOHC (VIN 5 and 6) "R" Carline Service Manual pages in "DRIVEABILITY AND EMISSIONS" Section 6E3-C8, "Electronically Controlled Automatic Transaxle," Diagnosis Chart for Code 34 and Code 35

Code 34:

The ohms specification for the lock-up duty solenoid was called-out as 20 to 30 ohms. The correct specification is 10 to 16 ohms.

Code 35:

The ohms specification for the line pressure duty solenoid was called-out as 20 to 30 ohms. The correct specification is 2.5 to 5 ohms.

Please refer to attached diagnostic charts for the corrected specification.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.