DTC 1

Self-diagnosis LED blinks once:

A problem in the Oxygen (02) Sensor Circuit. (Early Model)











The oxygen sensor, detects the oxygen content in the exhaust gas, and inputs the ECU. In operation, the ECU receives the signals from the sensor and varies the duration during which fuel is injected. The oxygen sensor is installed on the exhaust manifold.



Self-diagnosis LED blinks once:

A problem in the Oxygen (02) Sensor Circuit. (Late Model)*

* Late Model applies to vehicles with VIN above the following:

All States except CA
M/T JC031249
A/T JC030628

CA Only
M/T JC031738
A/T JC029763










The oxygen sensor, detects the oxygen content in the exhaust gas, and inputs the ECU. In operation, the ECU receives the signals from the sensor and varies the duration during which fuel is injected. The oxygen sensor is installed on the exhaust manifold.