BMW DTC P182A – TCM Internal Switch-On Temperature Sensor / Internal Temperature Sensor/Transmission Fluid Temperature Sensor – Correlation in Lower Temperature Range
DTC P182A meaning on BMW
DTC P182A on a BMW refers to a fault with the Transmission Control Module (TCM) Internal Switch-On Temperature Sensor, Internal Temperature Sensor, or Transmission Fluid Temperature Sensor. This fault indicates a correlation issue in the lower temperature range, suggesting that the sensors are not providing consistent or accurate readings when the transmission is operating at lower temperatures.
BMW DTC P182A symptoms
Symptoms of DTC P182A on a BMW may include erratic shifting behavior, delayed engagement of gears, transmission slipping, or the transmission going into limp mode. Additionally, the vehicle’s check engine light may illuminate, and there may be diagnostic trouble codes related to transmission temperature sensor correlation issues.
BMW DTC P182A causes
The causes of DTC P182A on a BMW can vary but commonly include faulty temperature sensors, wiring issues, sensor calibration problems, or internal TCM malfunctions. Exposure to extreme temperatures or fluid contamination can also contribute to sensor correlation problems in the lower temperature range.
BMW DTC P182A seriousness
DTC P182A should be taken seriously as it can lead to drivability issues and potential damage to the transmission if left unresolved. Ignoring this fault may result in further transmission problems and could compromise the overall performance and safety of the vehicle.
How to diagnose DTC P182A on BMW
To diagnose DTC P182A on a BMW, a comprehensive scan tool capable of reading transmission fault codes is required. The technician should perform a thorough inspection of the transmission temperature sensors, wiring harness, and TCM connections. Checking the sensor readings and comparing them to actual transmission temperatures can help pinpoint the source of the correlation issue.
How to fix DTC P182A on BMW
Fixing DTC P182A on a BMW typically involves replacing the faulty temperature sensors, addressing any wiring or connection issues, and recalibrating the TCM if necessary. It is essential to use genuine BMW parts and follow manufacturer guidelines during the repair process to ensure proper functionality and reliability.
How to erase DTC P182A on BMW
After fixing the underlying issue causing DTC P182A on a BMW, the diagnostic trouble code can be erased using a scan tool with the capability to clear fault codes. Once the repair is completed, the vehicle should be driven to allow the system to relearn and verify that the fault does not reoccur.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.