Power Solutions, Inc.

DTC 143

UnclassifiedSpeed

What This Code Means

Never Crank Sync At Start

Possible Causes

  • •Dirty or loose ECM ground terminals G1 and G2
  • •Incorrect voltage at CKP sensor connector pin A
  • •Lack of continuity between CKP connector pin B and ECM connector pin 12
  • •Lack of continuity between CKP connector pin C and ECM connector pin 11
  • •Damaged, corroded, or contaminated CKP connector C009 terminals
  • •Damaged, corroded, or contaminated ECM connector C001 terminals 11, 12, or 50
  • •Faulty CKP sensor
  • •Faulty CKP reluctor wheel
  • •Faulty ECM

Suggested Actions

  1. 1Perform the On-Board (OBD) System Check
  2. 2Clean and tighten ECM ground terminals G1 and G2
  3. 3Repair CKP sensor connector pin A circuit
  4. 4Repair circuit between CKP connector pin B and ECM connector pin 12
  5. 5Repair circuit between CKP connector pin C and ECM connector pin 11
  6. 6Inspect and repair CKP connector C009 terminals
  7. 7Inspect and repair ECM connector C001 terminals 11, 12, and 50
  8. 8Replace CKP sensor using CKP R&R procedure in Section 1E and inspect CKP reluctor wheel
  9. 9Replace ECM

Related Power Solutions, Inc. Fault Codes

DTC 212DTC 222DTC 134DTC 244DTC 123DTC 262DTC 122DTC 511DTC 114DTC 512DTC 113DTC 513
Browse all Power Solutions, Inc. fault codes

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