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Table 2, Trouble Code Table: TC 18 Knock Control Module; Replace ECU Opel Calibra I

Table 2, Trouble Codes

Trouble

code

Information Sensor

Cause of Fault

Remedy in F0:DATA LIST

No.
Trouble Code Storage when...
Remarks
18
KNOCK CONTROL MODULE; REPLACE ECU
-

· Engine temperature > 40 °C/104 °F

· The control unit carries out one internal knock sensor test per ignition. If this test is not passed for 255 consecutive ignitions, the trouble code is set (control units malfunction)

If trouble code 18 was recognized, the control unit retards the firing angle for reasons of safety by 8.4 ° CA. Knock control and charge control are switched off.