Mercedes Benz Truck G 550 Diagnostic Trouble Codes 0440

Mercedes-Benz Mercedes Benz OEM Parts Mercedes Benz OE Replacement Parts

0440
Heating of component G3/3 (Left O2 sensor, before TWC [KAT]) : Heating capacity is too low. (P0155)
Possible cause:
- G3/3 (Left O2 sensor, before TWC [KAT])
Affected functions:
- Engine diagnosis
- Exhaust system
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Test 1: Check component G3/3 (Left O2 sensor, before TWC [KAT]).
1. Check component G3/3 (Left O2 sensor, before TWC [KAT]).
Warning!Communication with ECU required.
0441
Heating of component G3/4 (Right O2 sensor, before TWC [KAT]) : Short circuit to positive (P0032)
Possible cause:
- G3/4 (Right O2 sensor, before TWC [KAT])
Affected functions:
- Engine diagnosis
- Exhaust system
-------------------------------------------------
Test 1: Check component G3/4 (Right O2 sensor, before TWC [KAT]).
1. Check component G3/4 (Right O2 sensor, before TWC [KAT]).
Warning!Communication with ECU required.
Mercedes Benz Truck G 550 (463.236) V8-5.5L (273.963)  Diagnostic Trouble Codes  Page 496