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Code C1735: ELC Compressor Relay Short Circuit To Battery/Short Across Load

  1. Perform CVRSS system check. See CVRSS SYSTEM CHECK  . After performing CVRSS system check, go to next step.
  2. Turn ignition off. Remove ELC compressor relay. Using DVOM, measure resistance between coil terminals of ELC compressor relay (component side). See WIRING DIAGRAMS  . If resistance is 45-49 ohms, go to next step. If resistance is not 45-49 ohms, go to step  7 .
  3. Turn ignition on, with engine off. Using DVOM, measure voltage at ELC compressor relay output circuit (Yellow wire) of ELC compressor relay connector (socket of trunk compartment relay center). See WIRING DIAGRAMS. If voltage is more than 10 volts, go to step  5 . If voltage is less than 10 volts, go to next step.
  4. Check CVRSS control module connector and ELC compressor relay and connector (socket) for debris and corrosion. Install ELC compressor relay. Reinstall/reconnect all components/connectors. Clear codes, and then wait 60 seconds. Display codes. If Code C1735 is set, go to step  8 . If Code C1735 is not set, go to step  6 .
  5. Repair short to voltage in ELC compressor relay output circuit (Yellow wire).
  6. Check for intermittent short to voltage in ELC compressor relay output circuit (Yellow wire).
  7. Replace ELC compressor relay.
  8. Turn ignition off. Replace CVRSS control module. Reinstall/reconnect all components/connectors. Install scan tool. Turn ignition on, with engine off. Calibrate NEW CVRSS control module. See CALIBRATING CVRSS CONTROL MODULE  under ADJUSTMENTS.
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