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Variable Effort Steering System: Other Oldsmobile Eighty-Eight X

Electronic Steering ~336 words

SYSTEM CHECK

  1. Connect scan tool. Check for EBTCM DTC 41. If DTC 41 is not present, go to next step. If DTC 41 is present, perform CIRCUIT TEST.
  2. If customer complains of too heavy or too light steering effort, go to «STEERING RESPONSE PROGRAMMING»(ref-55759-S37925964662001011700000) .

STEERING RESPONSE PROGRAMMING

  1. Connect scan tool. Select MAGNA STEER, then RECALIBRATION. Answer VIN question; YES if VIN is correct or NO if VIN is incorrect.
  2. Answer scan tool RECAL WITH FACTORY STANDARD CALIBRATION question. YES will automatically install factory calibration. Exit scan tool. Programming is complete. NO will bring up selection menu.
  3. If NO is selected in step 2), select desired response mode from selection menu; MORE FIRM, FACTORY CALIBRATION or LESS FIRM. Exit scan tool. Programming is complete.

HYDRAULIC SYSTEM BLEEDING

Note. If air is introduced into hydraulic system during servicing, bleed system. Aerated fluid, which appears Light Tan in color, results in poor steering performance and may cause pump damage.

  1. Turn ignition off. Raise and support vehicle with front wheels off ground. Using steering wheel, turn wheels fully to left. Add power steering fluid to COLD mark on dipstick and leave cap off. While an assistance monitors and maintains reservoir fluid level, turn wheels from side to side at least 20 times. On models with fluid coolers or long hydraulic lines, as many as 40 steering wheel cycles may be required. Trapped air may cause some fluid to flow from reservoir.
  2. Start engine. With engine idling, add fluid as necessary to bring level to FULL COLD mark. Reinstall reservoir cap. Return wheels to center position. Lower vehicle. Continue to run engine for 2-3 minutes to eliminate trapped air and raise fluid to operating temperature.
  3. Turn steering wheel in both directions and verify the following: Smooth power assist Noiseless operation Proper fluid level No system leaks

Also verify that fluid is not discolored and contains no foam or bubbles.

POWER STEERING PUMP BELT

Note. See ADJUSTMENTS in STEERING SYSTEM - POWER RACK & PINION article.

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