C3670 Alfa Romeo 2900 OBD Code

OBD/2 C3670 error code description and symptoms.

Vehicle Speed Sensor (VSS) Intermittent Indicates the powertrain control module (PCM) detected an error in the vehicle speed information. Vehicle speed data is received from either the vehicle speed sensor (VSS), transfer case speed sensor (TCSS), anti-lock brake system (ABS) control module, generic electronic module (GEM), or central timer module (CTM). This DTC is set the same way as C3670. However, it is intended to flash the transmission control indicator lamp (TCIL) for first time VSS circuit error/malfunctions. Refer to possible causes for C3670

On some transmissions, such as automated manual transmissions or automatic transmissions with manual mode, the GSP switch lets the TCM know whether or not the driver has selected automatic or manual function. On manual transmissions, the GSP switch informs the TCM which gear the driver is selecting, and may function as a neutral safety switch, depending on system design. The TCM also uses the gate select position switch to monitor transmission operation. For example, if the driver selects manual mode and selects 3rd gear on an automatic transmission, the TCM may monitor speed sensors to detect clutch and brake slippage.

C3670 Alfa Romeo 2900 Error Code Repair Process :

If your speed wheel sensor lr coherency fault check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system C3670 and engine control unit are in charge of monitoring a bunch of different speed wheel sensor lr coherency fault, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Alfa Romeo 2900 C3670 OBD2 Code

A common cause of code C3670 is the failure of Speed Wheel Sensor LR Coherency Fault, but there are several other possible causes as well, such as ;

EVAP system hose leaking
Engine Control Module (ECM)
EVAP canister or fuel tank leaks
Loss of ground.

C3670 is a kind of Chassis Trouble Code

Diagnosing chassis noises can be one of the most frustrating problems technicians face. Fortunately, manufacturers have engineered noise, vibration and harshness (NVH) diagnostic techniques and equipment to find the source of the noise.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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C3670 Alfa Romeo 2900 OBD Code

C3670 Alfa Romeo 2900 Error Code Repair Process :

Common Causes of Alfa Romeo 2900 C3670 OBD2 Code

C3670 code for other Alfa cars