U1677 Suzuki Esteem OBD Code

OBD/2 U1677 error code description and symptoms.

The Throttle Position sensor signals the Engine Control Module as to the current position of the engine throttle valve.
The current throttle valve opening is based on the driver's input from the gas pedal. The ECM uses the information from this sensor to help calculate fuel delivery and spark timing.

A good starting point in your diagnosis is checking all system fuses and fusible links. This can be done using the DVOM on the voltage setting. You will want to test the fuses with circuits loaded. Some fuses will appear normal until a load is placed on their respective circuit; at which point they will fail. This has been the cause of many 'phantom malfunctions'. Consult your vehicle information source for fuse and fusible link locations. If all fuses are in working order, you may want to check TCM relay operation by swapping identical relays. Usually the horn relay, starter relay, fuel pump relay, air conditioning clutch relay, and controller relays are similar enough in design to swap for diagnostic purposes.

U1677 Suzuki Esteem Error Code Repair Process :

If your wiper rear disable switch circuit short to battery 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 U1677 and engine control unit are in charge of monitoring a bunch of different wiper rear disable switch circuit short to battery, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Suzuki Esteem U1677 OBD2 Code

A common cause of code U1677 is the failure of Wiper Rear Disable Switch Circuit Short To Battery, but there are several other possible causes as well, such as ;

Damaged ECM
Engine Control Module (ECM)
Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection
Faulty front heated oxygen sensor

U1677 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.

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

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U1677 Suzuki Esteem OBD Code

U1677 Suzuki Esteem Error Code Repair Process :

Common Causes of Suzuki Esteem U1677 OBD2 Code

U1677 code for other Suzuki cars