C0121 Subaru Tribeca DTC Code

Subaru Tribeca Engine Specifications:

Engine Type :	Single Cylinder Engine
Cylinder Type :	Opposed Cylinder Engine
Engine Air Intake Process :	Supercharged Engine

Your Subaru Tribeca engine control system detects a problem, the computer stores the diagnostic trouble code C0121 in its memory. To figure out what is wrong with your vehicle you must first extract the C0121 DTC For Subaru Tribeca.

A good ground connection is also extremely important. C0121 Subaru Tribeca engine problem because the presence of voltage at the panel harness won't make the panel work if there is a bad ground connection. Since the instrument cluster is mounted in a plastic dash, a separate ground wire or ground circuit through the wiring harness is usually needed to complete the power circuit. Refer again to the wiring diagram to find the ground path, and then check it with your ohmmeter. Do not use a self-powered test light because it cannot measure resistance (any resistance will lower circuit voltage).

C0121 Subaru Tribeca DTC Meaning

C	Chassis Code - Problem is controller area network wiring bus and modules.
0	SAE - Generic
1	Fuel And Air Metering
2	Cruise Control Servo Indicates Low
1	PCM Stack Overrun

While fuel economy was increased, acceleration was seriously compromised, and the loss of engine vacuum led to a dangerous loss of braking assist when the C0121 Subaru Tribeca code system was in four-cylinder mode. In addition to these issues, while the company proposed a hydraulically controlled system that could be switched from within the car, the version they implemented had to be manually changed in the engine compartment using hand tools.