P3016

2746 - P3016

Information saved in
DME

Fault code
2746 - P3016

Fault text
Diagnosis of Bank 1 pre-catalyst oxygen sensor's reference
resistance

Fault description


Condition for fault identification
Test condition:
Oxygen sensor internal resistance offset adaptation
completed
Terminal condition: Engine running -
idle or partial load
Voltage condition:
ub > K_ED_PlusMin

Condition for fault memory entry
LA internal resistance offset adaptation value less than
K_LSRVK_OBD_REF_OFFS_Min or greater than
K_LSRVK_OBD_REF_OFFS_Max for
K_LSRVK_OBD_REF_OFFS_CNT offset adaptations

Action in service
1. Check plug and wiring harness to pre-catalyst oxygen
sensor forward of Bank 1 catalyst
2. If OK, replace oxygen sensor, or possibly DME

Fault effect and breakdown warning
MIL lamp on after engine runs 2x /Small influence on
drivability

Driver information
Warning light:
No

Service instruction
none