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Home >> Suzuki >> 2002 >> XL-7 Plus >> Repair and Diagnosis >> External Pages >> Different car >> Section 14 (Engine Controls - Self-Diagnostics - 1.6L) >> Diagnostic Tests >> DTC P1117: Engine Coolant Temperature Sensor No. 2 - Low Input >> Diagnosis & Repair Procedure
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Diagnosis & Repair Procedure

WARNING: This page is about a different car, the 2002 Suzuki Esteem. However, it is still accessible from the selected car via links, so may be relevant.
  1. If engine system check has been performed, go to next step. If engine system check has not been performed, go to A4: ENGINE SYSTEM CHECK  under SYSTEM TESTS.
  2. Turn ignition off. Disconnect ECT sensor No. 2 2-pin harness connector. ECT sensor is located in thermostat housing. See Figure . Disconnect ECM 16-pin harness connector C20. ECM is located under instrument panel, behind glove box. See Figure . Check continuity of Light Green wire between ECT sensor No. 1 and ECM. See Figure and WIRING DIAGRAMS article. If continuity exists, go to next step. If no continuity exists, go to step  4 .
  3. Repair short to ground in Light Green wire between ECM and ECT sensor No. 1. After repair, repeat DTC CONFIRMATION PROCEDURE  .
  4. Check ECT sensor No. 2 operation. See appropriate procedure under ENGINE SENSORS & SWITCHES in SYSTEM & COMPONENT TESTING article. If problem is found, replace ECT sensor No. 2. After repair, repeat DTC CONFIRMATION PROCEDURE  . If no problem is found, go to next step.
  5. Substitute a known good ECM, and repeat DTC CONFIRMATION PROCEDURE  . If DTC does not reset, testing is complete.
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