Home/Mitsubishi/Lancer/Mitsubishi Lancer IX (2000-2007)/Repair manual/Automatic Trans/Symptom Procedures - Except Evolution: Overview
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Symptom Procedures - Except Evolution: Overview Mitsubishi Lancer IX

Automatic Trans ~279 words
Inspection ProcedureDescription
INSPECTION PROCEDURE 1Engine does not Crank
INSPECTION PROCEDURE 2Does not Move Forward
INSPECTION PROCEDURE 3Does not Move Backward
INSPECTION PROCEDURE 4Does not Move (Forward or Backward)
INSPECTION PROCEDURE 5Engine Stalls when Moving Selector Lever from "N" to "D" or "N" to "R"
INSPECTION PROCEDURE 6Shift Shock when Shifting from "N" to "D" and Long Delay
INSPECTION PROCEDURE 7Shift Shock when Shifting from "N" to "R" and Long Delay
INSPECTION PROCEDURE 8Shift Shock when Shifting from "N" to "D" "N" to "R" and Long Delay
INSPECTION PROCEDURE 9Shift Shock and Slipping
INSPECTION PROCEDURE 10Early or Late Shifting All Gears
INSPECTION PROCEDURE 11Early or Late Shifting Some Gears
INSPECTION PROCEDURE 12No Diagnostic Trouble Codes (Does not Shift)
INSPECTION PROCEDURE 13Poor Acceleration
INSPECTION PROCEDURE 14Vibration
INSPECTION PROCEDURE 15Vehicle Shifts Differently with A/C Engaged
INSPECTION PROCEDURE 16Transaxle won't Downshift under Load with Auto-cruise Engaged.
INSPECTION PROCEDURE 17Vehicle Speed Signal System

AUTOMATIC TRANSAXLE INSPECTION PROCEDURES INDEX

CIRCUIT OPERATION

PCM (terminal number 66) receives battery positive voltage from the battery.

  1. When the A/C is turned ON and the dual pressure switch is closed, PCM (terminal number 83) receives battery voltage and then determines the A/C compressor has been signaled to engage.
  2. When the A/C compressor is engaged, the PCM increases line pressure and briefly delays shift points to compensate for the additional engine load.

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.

  1. While the vehicle is being driven, the PCM sends pulse signals (ranging from 0 to 12 volts) to the combination meter according to output signals from the output shaft speed sensor. The combination meter displays vehicle speed according to the pulse signals.
  2. If the vehicle speed signal becomes inoperative, the transaxle will not shift normally.

TECHNICAL DESCRIPTION (COMMENT)

Lock cam or shift lock cable may be defective.

Selector lever assembly, shift lock cable, key interlock cable, transaxle control cable, or lock cam may be defective.

Key interlock cable or lock cam may be defective.

Key interlock cable, shift lock cable, transaxle control cable, lock cam, or selector lever assembly may be defective.

Selector lever assembly, transaxle control cable, or lock cam may be defective.

Lock cam, steering lock cylinder assembly, transaxle control cable, or key interlock cable may be defective.

Lock cam, steering lock cylinder assembly, transaxle control cable, or key interlock cable may be defective.