P0D85 – BMW DTC

BMW DTC P0D85 – Battery Charging Output Voltage Too High

DTC P0D85 meaning on BMW

The Diagnostic Trouble Code (DTC) P0D85 for BMW indicates that the battery charging output voltage is too high. This means that the voltage being supplied to the battery for charging exceeds the specified limits set by the vehicle’s control module.

BMW DTC P0D85 symptoms

Symptoms of the BMW DTC P0D85 may include:

• Check Engine Light (CEL) illuminated on the dashboard
• Increased battery voltage reading on the vehicle’s diagnostic system
• Possible overcharging of the battery leading to premature battery failure

BMW DTC P0D85 causes

Common causes of the BMW DTC P0D85 may include:

• Faulty voltage regulator within the alternator
• Issues with the vehicle’s charging system wiring
• Malfunctioning battery temperature sensor

BMW DTC P0D85 seriousness

The BMW DTC P0D85 should be addressed promptly to prevent potential damage to the vehicle’s electrical system and the battery. Overcharging the battery can lead to reduced battery life and other electrical component failures.

How to diagnose DTC P0D85 on BMW

To diagnose the DTC P0D85 on a BMW, you can perform the following steps:

1. Use a diagnostic scanner to retrieve the fault code and check for any related codes
2. Inspect the alternator and voltage regulator for proper operation
3. Check the battery temperature sensor for any faults
4. Inspect the charging system wiring for any damage or loose connections

How to fix DTC P0D85 on BMW

To fix the DTC P0D85 on a BMW, you may need to:

1. Replace the faulty voltage regulator within the alternator
2. Repair any damaged wiring in the charging system
3. Replace the malfunctioning battery temperature sensor
4. Reset the fault code and monitor the charging system for proper operation

How to erase DTC P0D85 on BMW

To erase the DTC P0D85 on a BMW, you can:

1. Use a diagnostic scanner to clear the fault code
2. Ensure that the underlying issue causing the fault code has been addressed
3. Perform a test drive to verify that the fault code does not return

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.