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Clearing Codes: LH-SFI

  1. Disconnecting vehicle battery will not erase codes. Connect Pulse Counter Adapter (140 589 14 63 00) to diagnostic connector, located in right rear corner of engine compartment. Connect Pulse Counter (124 589 19 21 00) to pulse counter adapter. See Figure . Connect Red wire of pulse counter to pulse counter adapter terminal No. 3. Connect Black wire of pulse counter to pulse counter adapter terminal No. 1.
  2. Pulse counter Yellow wire is connected to various pulse counter adapter terminals, depending on which module is being cleared. See PULSE COUNTER CONNECTION/ADAPTER IDENTIFICATION table.
    PULSE COUNTER CONNECTION/ADAPTER IDENTIFICATION

    Module Adapter Terminal
    Base Module No. 8
    Cruise Control/Idle Speed Control Module (1) No. 7
    Diagnostic Module No. 19
    Electronic Accelerator Control Module (2) No. 7
    EZL/AKR Ignition Control Unit No. 17
    LH Control Unit No. 4
    (1) Vehicles without Acceleration Slip Regulation (ASR).
    (2) Vehicles equipped with Acceleration Slip Regulation (ASR).
  3. After connecting Yellow wire to proper pulse counter adapter terminal, U-BATT LED on pulse counter display will illuminate if equipment is properly connected. If U-BATT LED illuminates, go to next step. If U-BATT LED does not illuminate, check pulse counter fuse. Replace as necessary. If pulse counter fuse is okay, check wiring harness between diagnostic connector and vehicle wiring harness. Repair wiring as necessary.
  4. Turn ignition on. Press START button on pulse counter for 2-4 seconds maximum. Wait 3 seconds. Press START button on pulse counter for 6-8 seconds. Turn ignition off and wait 30 seconds. Each code stored in must be erased individually. Repeat procedure for other stored fault codes. When pulse counter displays "1", no faults are stored. Disconnect test equipment.