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Code 38 - Engine Torque Control

NOTE: Refer to illustration for ECM connector terminal identification. See Figure .
  1. Turn ignition on. Using a DVOM, check voltage between ECM connector terminal A20 (backprobe) and ground. Voltage should be 5 volts or greater. If voltage is not as specified, go to next step. If voltage is as specified, check ECM connector terminals for good contact. Repair as necessary. If connector terminals are okay, replace ECM.
  2. Turn ignition off. Disconnect ECM and Transaxle Control Unit (TCU) connectors. Using an ohmmeter, check resistance between ECM connector terminal A20 and TCU connector terminal C16 (Black/Yellow wire). Resistance should be zero ohms. If resistance is not as specified, repair circuit as necessary. If resistance is as specified, check TCU connector terminals for good contact. Repair as necessary. If connector terminals are okay, replace TCU.
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