1999 Lexus SC 300FACTORY OEM SERVICE PROCEDURE

No-Load Test

CAUTION: DO NOT operate starter for more than 3-5 seconds.

Connect battery and ammeter to starter. See Figure or Figure . Perform STEP 4. Starter armature should rotate smoothly and steadily with pinion gear moving out. Amperage draw should be within specification. See NO-LOAD TEST SPECIFICATIONSΒ  table.

NO-LOAD TEST SPECIFICATIONS

Application Maximum Amps Volts
ES300, GS300, RX300 & SC300 90 11.5
GS400, LS400 & SC400 100 11.5
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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