Volkswagen Golf 1999 Service Manual page 454

DTC table: SAE P0 codes
DTC code
SAE VAG
P0136 16520 Bank 1 sensor 2
Electrical
malfunction
P0137 16521 Bank 1 sensor 2
Voltage too low
P0138 16522 Bank 1 sensor 2
Voltage too high
P0139 16523 Bank 1 sensor 2
Signal too slow
P0140 16524 Bank 1 sensor 2
No activity
P0141 16525 Bank 1 sensor 2
Electrical
malfunction in
heater circuit
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DTC text
- Check Oxygen Sensor (O2S) heating for
Oxygen Sensor (O2S) after Three Way
Catalytic Converter (TWC)
- Check Oxygen Sensor (O2S) and Oxygen
Sensor (O2S) control after Three Way
Catalytic Converter (TWC)
- Check aging of Oxygen Sensor (O2S) after
Three Way Catalytic Converter (TWC)
24-154
- Check Oxygen Sensor (O2S) heating for
Oxygen Sensor (O2S) after Three Way
Catalytic Converter (TWC)
Corrective action
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Page 24-45
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12/2/2005