Table 2, Trouble Code Table: TC 38 O2 Sensor Circuit Voltage Low Opel Calibra I

Table 2, Trouble Codes

Trouble

Information Sensor

Cause of Fault

Remedy in F0:DATA LIST

Conditions for setting fault:

The fault is recognized by the control unit if

· over a period of time t > 2.5 s

· the oxygen sensor voltage is <0.1 V

(short circuit to ground)

Conditions for storage of fault:

The fault is stored and the replacement value called up if the following conditions are fulfilled consecutively:

1.) Coolant temperature T > 70 °C/157 °F,

2.) Condition 1.) is fulfilled for 3 min,

3.) Load signal > 3.5 ms,

4.) After conditions 1.) to 3.) are fulfilled, waiting time of 5 s elapsed,

5.) Trouble code 73 or 74 not recognized,

Replacement value:

If trouble code 38 was recognized, the control unit takes 450 mV as replacement voltage (oxygen sensor regulation switched off).