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Home >> Subaru >> 2001 >> Outback Base, Standard >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Self-Diagnostics - 2.2L & 2.5L >> Diagnostic Tests >> DTC P1106: Engine Torque Control Signal No. 2 Circuit Malfunction (A/T) - Forester, IMPREZA & Outback Sport

DTC P1106: Engine Torque Control Signal No. 2 Circuit Malfunction (A/T) - Forester, IMPREZA & Outback Sport

  1. Perform basic diagnostic procedure. See BASIC DIAGNOSTIC PROCEDURE . Turn ignition on. Using DVOM connected to ground, backprobe ECM connector B135 (28-pin connector) terminal No. 17. See Figure. If voltage is more than 4.5 volts, go to next step. If voltage is not more than 4.5 volts, go to step  4.
  2. Using DVOM connected to ground, backprobe ECM connector B135 (28-pin connector) terminal No. 17. If voltage is more than 10 volts, locate and repair short to voltage in wiring between ECM and Transaxle Control Module (TCM). See WIRING DIAGRAMS article. If voltage is not more than 10 volts, go to next step.
  3. Check for poor terminal contact in ECM connector B135 (28-pin connector). Repair connector as necessary. If connector is okay, replace ECM.
  4. Turn ignition off. Disconnect ECM and TCM connectors. Using an ohmmeter, measure resistance between ECM connector B135 (28-pin connector) terminal No. 17 and TCM connector B54 (24-pin connector) terminal No. 21. See Figure and Figure . If resistance is less than one ohm, go to next step. If resistance is not less than one ohm, locate and repair open circuit in wiring between ECM and TCM.
  5. Measure resistance between ground and ECM connector B135 (28-pin connector) terminal No. 17. If resistance is less than 10 ohms, locate and repair short to ground in wiring between ECM and TCM. If resistance is not less than 10 ohms, go to next step.
  6. Check for poor terminal contact in TCM connector. Repair connector as necessary. If connector is okay, replace TCM. Clear memory and perform verification procedure. See CLEARING DIAGNOSTIC TROUBLE CODES  and VERIFICATION PROCEDURE  .
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