Possible Causes:
- Connector MS43 ECM C604, Oxy Sensor Post Cat Bank 1 C643, Engine Fusebox C578.
- Open circuit C604/16 (UN) - C643/2 (UN).
- Open circuit C604/22 (BG) - C643/1 (BG).
- Oxygen sensor post catalyst bank 1.
- MS43 ECM.
- Connector MS43 ECM C604, Oxy Sensor Post Cat Bank 1 C643, Engine Fusebox C578.
CONNECTOR
Check for connector not correctly latched, backed out pins, damaged pins, corroded pins
- Open circuit C604/16 (UN) - C643/2 (UN).
OPEN_CIRCUIT
Check resistance > 1M&!
- Open circuit C604/22 (BG) - C643/1 (BG).
OPEN_CIRCUIT
Check resistance > 1M&!
- Oxygen sensor post catalyst bank 1.
No detail available for this fault
- MS43 ECM.
No detail available for this fault