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Resistance Check

  1. Remove ECM from its bracket referring to ENGINE CONTROL MODULE (ECM) REMOVAL AND INSTALLATION .
    CAUTION: Never touch terminals of ECM itself or connect voltmeter or ohmmeter (2).
  2. Connect special tool to ECM connectors (1) securely.
    NOTE: Do not connect the other connector of special tool to ECM.

    Special Tool 

    (A): 09933-06320 

  3. Check resistance between each pair of terminals of special tool connectors (2) as listed in the following table.
    CAUTION:
    • Be sure to connect ohmmeter probe from wire harness side of coupler.
    • Be sure to turn OFF ignition switch for this check.
    • Resistance in the following table represents that measured when parts temperature is 20 °C (68 ° F).
      Fig 1: Checking Resistance Between Each Pair Of Terminals Of Special Tool Connectors
      G04846623Courtesy of SUZUKI OF AMERICA CORP.
RESISTANCE SPECIFICATION

Terminals Circuit Standard resistance Condition
E01-60 to E01-29 Main relay 160 - 240 Ω Battery disconnected and ignition switch turned ON
E01-15 to E01-29 Fuel pump relay 160 - 240 Ω -
01-16 to E01-1/16 No.3 fuel injector 10.8 - 18.2 Ω -
C01-17 to E01-1/16 No.4 fuel injector
C01-13 to E01-1/16 EVAP canister purge valve 22 - 26 Ω -
C01-2 to E01-1/16 No.2 fuel injector 10.8 - 18.2 Ω -
C01-1 to E01-1/16 No.1 fuel injector 10.8 - 18.2 Ω -
E01-50 to E01-1/16 Throttle actuator control relay 160 - 240 Ω -
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