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Home >> Daihatsu >> 1991 >> Charade SX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Computerized Engine Controls >> Electronic Control Unit (Ecu)
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Electronic Control Unit (Ecu)

  1. Disconnect negative battery cable. On Charade, remove glove compartment assembly. On all models, install Sub-Harness (SST 09842-87704-000) between ECU and engine wiring. See Fig 2 .
  2. Check voltage and ground circuits and compare to values listed in pin voltage charts. See PIN VOLTAGE CHARTS article in the ENGINE PERFORMANCE Section. Repair component and/or circuit if values obtained are not as specified. If all values are as specified in chart but driveability problem exists, replace the ECU.
Fig 1: Locating ECU (1.6L Shown; 1.0L/1.3L Similar)
G90E16570Courtesy of DAIHATSU MOTOR CO. LTD.
Fig 2: Installing Sub-Harness (SST 09842-87704-000)
G90F16571Courtesy of DAIHATSU MOTOR CO. LTD.
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