B1021 Caterham C OBD Code

OBD/2 B1021 error code description and symptoms.

Output Shaft Speed sensor circuit intermittent failure The output shaft speed sensor signal to the PCM is irregular or interrupted.
Harness connector not properly seated Harness intermittently shorted, or open Harness connector damaged OSS sensor damaged, or not installed properly Verify harness and connector integrity Verify OSS sensor proper installation.

Circuit High Input codes like B1021 are mostly caused by defective alternators that develop excessive voltages, although there may be other causes as well, such as short circuits that 'leak' current into a particular system from other, unrelated systems that work on higher voltages. Note that in the case of short circuits that leak power into a control circuit, there is likely to be other, seemingly unrelated trouble codes present along with the code(s) being investigated. Diagnosing a 'high input' code will always involve a thorough testing of the charging system as a first step, followed by measures to isolate the system from all other possible sources of power during resistance, continuity, and reference voltage tests.

B1021 Caterham C Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine B1021 light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If transmission transfer case contact plate power short to battery so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the transmission transfer case contact plate power short to battery.

Difficulty Level (Easy)

Repair Time (45 Min.)

Cost Prediction : $ 75-90

Common Causes of Caterham C B1021 OBD2 Code

A common cause of code B1021 is the failure of Transmission Transfer Case Contact Plate Power Short To Battery, but there are several other possible causes as well, such as ;

• Camshaft Position Sensor harness is open or shorted
• Faulty oil control valve (OCV)
• Faulty select solenoid
• Intake Valve Timing Control Solenoid Valve circuit poor electrical connection

B1021 is a kind of Body Trouble Code Auto body problems aren't always easy to spot. Diagnosing auto body problems sometimes requires a little know-how. In this section you'll find articles dedicated to teaching you how to diagnose auto body problems.

B1021 code for other Caterham cars

You can view according B1021 DTC for your car model. We selected several models to see obd2 solutions click and view it.

• B1021 Caterham 120 Superlight
• B1021 Caterham 1700
• B1021 Caterham 21
• B1021 Caterham 275s-sv
• B1021 Caterham 485r
• B1021 Caterham 7
• B1021 Caterham Beaulieu
• B1021 Caterham R300
• B1021 Caterham Roadsport
• B1021 Caterham Seven
• B1021 Caterham Seven S3
• B1021 Caterham Super
• B1021 Caterham Super 7
• B1021 Caterham Superlight
• B1021 Caterham Superseven
• B1021 Caterham Vx

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