ELECTRICALS 211 Sr. No. Displayed DTC Code DTC Description Fault cause Probable trouble Area 57 P0646 - 11 A/C clutch relay short to ground Circuit short to ground 1) Loose/ damaged connections. 2) Check for back out of pins at ECU connector. 3) Faulty ECU. 58 P0645 - 13 A/C clutch relay signal error Circuit open 1) Loose/ damaged connections. 2) Check for back out of pins at ECU connector. 3) Faulty ECU. 59 P0324 - 13 Knock sensor signal error Circuit open 1) Loose/ damaged connections or intermittent fault. 2) Sensor supply line short circuit to battery/ ground. 3) Sensor signal line short circuit to battery/ ground. 4) Check the continuity from sensor connector pins to the ECU pins. 5) Check for back out of pins at both sensor connector and ECU connector. 6) Check for damage of pins at both sensor connector and ECU connector. 7) Faulty knock sensor. 8) Faulty ECU. 60 P0328 - 12 Knock sensor negative line short to battery Circuit short to battery 1) Loose/ damaged connections or intermittent fault. 2) Sensor supply line short circuit to battery/ ground. 3) Sensor signal line short circuit to battery/ ground. 4) Check the continuity from sensor connector pins to the ECU pins. 5) Check for back out of pins at both sensor connector and ECU connector. 6) Check for damage of pins at both sensor connector and ECU connector. 7) Faulty knock sensor. 8) Faulty ECU. 61 P0327 - 11 Knock sensor negative line short to ground Circuit short to ground 1) Loose/ damaged connections or intermittent fault. 2) Sensor supply line short circuit to battery/ ground. 3) Sensor signal line short circuit to battery/ ground. 4) Check the continuity from sensor connector pins to the ECU pins. 5) Check for back out of pins at both sensor connector and ECU connector. 6) Check for damage of pins at both sensor connector and ECU connector. 7) Faulty knock sensor. 8) Faulty ECU.
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