The Camshaft Position sensor will signal the Engine Control Module when the #1 cylinder is ready for the spark plug to fire (top-dead-center on compression stroke). The ECM uses the information from this sensor to help calculate fuel delivery and spark timing.
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.
Difficulty Level (Expert)
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Repair Time (60 Min.)
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| Cost Prediction : $ 80-120 |
If your ignition run/acc circuit open 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 U1423 and engine control unit are in charge of monitoring a bunch of different ignition run/acc circuit open, and if they get a reading that's a little out of whack, up pops the check engine light.
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U1423 is a kind of Network Trouble Code
U-code indicates that engine communication errors and shows lost communication with engine parts.U-Codes are fairly straight forward, given all of the articles and technical publications that have been written regarding these problematic codes. In most cases, it just comes down to identifying the module that isn't communicating with the other modules on the CAN bus line for whatever reason. |
You can view according U1423 DTC for your car model. We selected several models to see obd2 solutions click and view it.
| +U1423 Lexus Flv | +U1423 Nissan Micra | +U1423 Land Rover Lr3 | +U1423 Chevrolet Sail | +U1423 Lea-francis 2.5-litre |
Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.
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