P2298

2729 - P2298

Information saved in
DME

Fault code
2729 - P2298

Fault text
Oxygen sensor, coast-mode diagnosis before cat., bank 2

Fault description
O2 Sensor Out of Range During Deceleration (Bank 2
Sensor 1)

Condition for fault identification
Test condition:
Oxygen sensor is available (via sensor temperature, no error
code entries, etc.) but the AD value is less than 3398mV
(K_LAVK_OBD_SA_SCHW) for a number of 2
(K_LAVK_OBD_SA_CNT) measurements
Terminal condition: Engine running - overrun condition
Voltage condition:
none

Condition for fault memory entry
none

Action in service
1. Check plug and wiring harness to pre-cat oxygen sensor
LSVK B2 (focus on opens in wires for virtual ground and
pumping current)
2. Replace oxygen sensor

Fault effect and breakdown warning
MIL on after engine runs 2x

Driver information
Warning light:
MIL

Service instruction
none