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Home >> Kia >> 2003 >> Spectra Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1586: Automatic Transaxle Or Manual Transaxle Encoding Malfunction >> Test Procedure
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Test Procedure

  1. If vehicle is equipped with Manual Transaxle, go to step  2 . If vehicle is equipped with Automatic Transaxle, go to step  3 .
  2. For vehicle with M/T turn ignition off. Disconnect ECM 81-pin connector. See Figure . Measure resistance between ground and ECM connector terminal No. 78 (Black/Yellow wire). Resistance should be infinite. If resistance is as specified, problem is intermittent, check for possible poor connection at ECM connector terminals, repair as necessary and go to step  4 . If resistance is not as specified, repair short circuit as necessary. See ENGINE PERFORMANCE under SPECTRA in WIRING DIAGRAMS article. After repair go to step  4 .
  3. For vehicle with A/T turn ignition off. Disconnect ECM 81-pin connector. See Figure . Measure resistance between ground and ECM connector terminal No. 78 (Black/Yellow wire). Resistance should be below one ohm. If resistance is as specified, problem is intermittent, check for possible poor connection at ECM connector terminals, repair as necessary and go to step  4 . If resistance is not as specified, repair open circuit as necessary. See ENGINE PERFORMANCE under SPECTRA in WIRING DIAGRAMS article. After repair go to step  4 .
  4. After repair, return vehicle to original condition. Clear codes using Hi-Scan Pro/Kia Data Pro Scan tool or equivalent. Verify repairs by driving vehicle and monitoring for pending codes. If DTC is set during test drive, follow appropriate DTC test procedure.
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