LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Kia >> 2010 >> Forte EX, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (ULEV) (2 Of 2) >> DTC P0646: A/C Clutch Relay Control Circuit Low >> General Information >> DTC Detecting Condition
April 5, 2026: LEMON Manuals is launched! Read the announcement.

General Information: DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item Detecting Condition Possible Cause
DTC Strategy
  • Electrical Check
  • Open or short to ground in power circuit
  • Open or short to ground in Control circuit
  • Poor connection or damaged harness
  • Faulty A/C Compressor Relay
Enable Conditions
  • 10V < Battery voltage < 16V
Threshold value
  • Short to Ground or Line Break
Diagnosis Time
  • 50 sec.
MIL On Condition
  • -