Variable Cam Timing Over-advanced (Bank 1) The comprehensive component monitor (CCM) monitors the VCT position for an over-advanced camshaft timing.
The test fails when the camshaft timing exceeds a maximum calibrated value or remains in an advanced position. Cam timing improperly set No oil flow to the VCT piston chamber Low oil pressure VCT solenoid valve stuck closed Camshaft advance mechanism binding (VCT unit) B0402 DTC is a check of the VCT unit.
At this point we are assuming that the fuses and relays are good. You will need to locate the PCM/TCM and the power input signal circuit using your vehicle information source. Unplug the connector from the PCM/TCM, place the ignition switch in the ON position, and probe the appropriate circuit with the positive test lead of the DVOM.
Difficulty Level (Easy)
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Repair Time (20 Min.)
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| Cost Prediction : $ 40-75 |
If your 1-2 shift malfunction 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 B0402 and engine control unit are in charge of monitoring a bunch of different 1-2 shift malfunction, and if they get a reading that's a little out of whack, up pops the check engine light.
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B0402 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. |
You can view according B0402 DTC for your car model. We selected several models to see obd2 solutions click and view it.
| +B0402 Volkswagen Amarok | +B0402 Maserati 228 | +B0402 Mazda 787 | +B0402 Ford Ten | +B0402 Chevrolet Impala 9 |
Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.
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