DME 7.8 DME 7.8 0 · 0-30.1P0153

DME 7.8 DME 7.8 0 0-30.1P0153 O2 Sensor Circuit Slow Response Diagnostic conditions • Engine speed between 1000 rpm and 3000 rpm • Engine load (relative air charge) between 12 % and 70 % • Calculated TWC temperature greater than 350°C • Oxygen sensing system active Possible cause of fault ♦Oxygen sensor is dynamically inert Affected terminals II/10 and II/16 Diagnosis/troubleshooting Note! Do not use contact spray on the plug connections to the oxygen sensor. Work instruction Display OK If not OK 1 Read out the fault mem- ♦If there are additional faults in ory the memory, correct these first 2 Read out period for sen- Less than 3 seconds Replace oxygen sor signal bank 2 with sensor scan tool in Mode 5 or PST 2 Note! Do not confuse oxygen sensor ahead of catalytic converter and oxy- gen sensor after catalytic converter. 2469 P0153 0-30.1 page 1 Printed in Germany – 9, 2003 p0153a