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Home >> Volvo >> 2007 >> V70 Base, 2.4 61, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control Module (ECM) Diagnostic Trouble Codes (DTC) - 5 Of 14 >> ECM-340A: Knock Sensor (KS). Too Little Roar (B5244S; 2001-2004) >> Diagnostic trouble code (DTC) information

Diagnostic trouble code (DTC) information

Condition 

Fig 1: Identifying Knock Sensor
GLL103042Courtesy of VOLVO CARS OF NORTH AMERICA.

Engine control module (ECM) checks the information from the knock sensor (KS) during normal driving conditions. Diagnostic trouble code (DTC) ECM-340A is stored in the engine control module (ECM) if the engine control module (ECM) registers that the signal from knock sensor (KS) deviates from the tolerance.

Substitute Value 

Knock control is disabled

ignition retarded for safety reasons

Possible Source 

Too little roar: 

Possible Source 

Too much roar: 

Fault symptom[s] 

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