Czujnik obrotów turbiny — usterka obwodu
P1700
WysokiTransmission control module (TCM) request circuit fault. Manufacturer-specific code related to problems in the automatic transmission control system.
OBD-II (EN): Transmission Control Module (TCM) Request Circuit Fault
Code P1700 is a manufacturer-specific fault related to the automatic transmission control system. It may indicate a communication problem between controllers, a damaged speed sensor, or a TCM module failure – the specific cause depends on the vehicle brand. Due to the complexity of diagnostics, a visit to a service center with a professional diagnostic scanner is recommended.
Symptoms
Check Engine light (MIL) illuminated Problems with gear shifting or transmission locked in limp mode Jerking or delayed responses when changing gears Possible incorrect speed or RPM readings In some vehicles (Opel Easytronic): inability to engage a gear
Possible causes
Damage or interference in communication between TCM and ECM (engine controller) Damaged shaft speed sensor (Toyota/Lexus) Fault in the throttle position sensor circuit in the automatic transmission system Damaged wiring or connectors of the TCM module Damage to gear actuators or clutch system (Easytronic) Power supply problem for the TCM module Internal error of the transmission controller
Affected systems
Related codes
System sterowania skrzynią biegów — usterka
Nieprawidłowy przełożenie biegu
Czujnik prędkości wyjściowej skrzyni — usterka obwodu
Code P1700 appears in these brands
Go to messages and symptoms for your brand — there we analyze this code together with other typical alerts.
Does code P1700 require professional diagnostics?
The code alone is not enough. To find the cause, you need to read live data, check freeze frame conditions, and compare with vehicle behavior. Book a diagnostic session.
