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Home >> Mitsubishi >> 2003 >> Lancer LS >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Symptom Procedures - Except Evolution >> Symptom Procedures <Automatic Transaxle> >> INSPECTION PROCEDURE 16: Transaxle won't Downshift under Load with Auto-cruise Engaged. >> Circuit Operation
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Circuit Operation

When the battery positive voltage from PCM (terminal number 75) is grounded at auto-cruise control-ECU (terminal number 3), the auto-cruise control-ECU emits an overdrive cancel signal. When a malfunction of the auto-cruise control circuit occurs, the transaxle may downshift harshly with the auto-cruise control engaged.

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