Generac

6-4

UnclassifiedSensors

What This Code Means

TTMAP sensor malfunction; CKP sensor malfunction

Possible Causes

  • •Short to ground in TTMAP sensor circuit
  • •Open circuit/high resistance in TTMAP sensor circuit
  • •TTMAP sensor voltage out of range
  • •Implausible signal from TTMAP sensor
  • •Internal fault within the TTMAP sensor
  • •Faulty TTMAP sensor
  • •Harness continuity issue to ground on TTMAP sensor conductors
  • •Faulty CKP sensor
  • •Harness continuity issue to ground on CKP sensor conductors

Suggested Actions

  1. 1Troubleshoot Throttle Position, Temperature and Manifold Air Pressure Sensor (TTMAP)
  2. 2Check for short to ground in TTMAP sensor circuit
  3. 3Check for open circuit/high resistance in TTMAP sensor circuit
  4. 4Check TTMAP sensor voltage
  5. 5Inspect TTMAP sensor signal for plausibility
  6. 6Replace TTMAP sensor
  7. 7Perform point to point resistance check on the harness
  8. 8Verify no continuity to ground on TTMAP sensor conductors
  9. 9Replace harness as needed
  10. 10Replace the CKP
  11. 11Perform a point to point resistance check on the harness
  12. 12Verify no continuity to ground on either conductor

Related Generac Fault Codes

6-56-66-30024936-20031184-40031194-30032014-2P0300
Browse all Generac fault codes

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