Service & Repair Manual

01-21
DTC DTC text Corrective action
SAE VAG
P0136 16520 Bank1, Sensor 2
Electrical malfunction in
circuit
1)
- Testing Oxygen Sensor (O2S) and oxygen sensor control behind Three Way
Catalytic Converter (TWC) Page 24-97
P0137 16521 Bank1, Sensor 2
Voltage too low
1)
P0138 16522 Bank1, Sensor 2
Voltage too high
1)
P0139 16523 Bank1, Sensor 2
Signal too slow
1)
P0140 16524 Bank1, Sensor 2
No activity
1)
1)
For these malfunctions, ECM does not switch on the Malfunction Indicator Lamp (MIL) unless malfunction is recognized
again after another engine start. Meaning of Malfunction Indicator Lamp (MIL) Page 01-3 .
Pa
g
e 10 of 52Check DTC Memor
y
(
function 02
)
and Erase DTC Memor
y
(
function 05
)
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