P0140

O2 Sensor Circuit Bank 1 Downstream - Open Circuit.

P0140 - O2 sensor circuit bank 1 downstream sensor.: Last occurrence - signal fault

Possible causes:
1. Short circuit C0606/11 (YU) - C0643/3 (YU).
2. Connectors C0606, C0643.
3. O2 Sensor.

1. Short circuit C0606/11 (YU) - C0643/3 (YU).
OPEN_CIRCUIT
Check resistance > 1M Ohms.

2. Connectors C0606, C0643.
CONNECTOR
Check for connector not correctly latched, backed out pins, damaged pins, corroded pins

3. O2 Sensor.
No detail available for this fault