U0149 Ds Ds7 Crossback is described as Oxygen Sensor Circuit No Activity Detected Bank 2 Sensor 1. This code appears when the PCM (powertrain control module, also known as ECM or engine control module in other brands) remains at or close the 0.450 set voltage point. The PCM then uses this data to provide the right strategies for the fuel delivery and ignition timing of the engine.
SymptomsSymptoms of a U0149 Ds Ds7 Crossback diagnostic trouble code may include:
Possible Causes :
Look at the plug wires to make sure they are not burnt or laying on the exhaust. Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector. Once located, visually inspect the connectors and wiring. Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors.
Diagnostic trouble code U0149 Ds Ds7 Crossback is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.
Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before U0149 Ds Ds7 Crossback.
Fortunately, U0149 Ds Ds7 Crossback is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.