P0037

O2 Sensor Heater Circuit Bank 1 Downstream Sensor - Short Circuit To Ground

P0037 - O2 sensor heater circuit bank 1 downstream sensor fault.: Last occurrence - minimum signal

Possible causes:
1. Short circuit C0604-7 (NU) - ground.
2. Short circuit C0604-17 (BU) - ground.
3. Connector C0604, C0643.
4. Oxygen sensor.

1. Short circuit C0604-7 (NU) - ground.
SHORT_CIRCUIT
Check resistance < 5.0 Ohms.

2. Short circuit C0604-17 (BU) - ground.
SHORT_CIRCUIT
Check resistance < 5.0 Ohms.

3. Connector C0604, C0643.
CONNECTOR
Check for connector not correctly latched, backed out pins, damaged pins, corroded pins

4. Oxygen sensor.
No detail available for this fault