DTC-636

UnclassifiedGeneral

What This Code Means

Engine does not operate normally; Stored diagnostic trouble codes; MIL illuminated

Possible Causes

  • •Continuity between throttle connector TPS 1 signal pin 6 and engine ground
  • •Continuity between throttle connector TPS 2 signal pin 5 and engine ground
  • •ECM connector terminals damage, corrosion, or contamination
  • •Faulty ECM

Suggested Actions

  1. 1Repair the TPS 1 signal pin 6 circuit (refer to Wiring Repairs in Engine Electrical)
  2. 2Repair the TPS 2 signal pin 5 circuit (refer to Wiring Repairs in Engine Electrical)
  3. 3Repair damaged, corroded, or contaminated ECM connector terminals (refer to Wiring Repairs in Engine Electrical)
  4. 4Replace ECM
  5. 5Remove all test equipment except the DST
  6. 6Connect any disconnected components, fuses, etc.
  7. 7Using the DST, clear DTC information from the ECM

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