CodeRegistry
Brands
  1. Home
  2. Bosch
  3. ECU Troubleshooting
  4. P1469
About·Privacy·Terms

CodeRegistry — Your global library for technical solutions.

For your safety: always follow the equipment manufacturer’s official manuals. CodeRegistry is an independent help site and is not affiliated with the brands listed here.

P1469

P1469 - AD converter fault 1

Bosch · ECU Troubleshooting

What does P1469 mean?

This indicates a problem with the Analog-to-Digital (AD) converter circuit 1 within the ECU. This circuit is used to convert analog sensor signals into digital data.

Common Causes

  • ECU internal AD converter failure
  • Signal noise on the analog input
  • Faulty sensor connected to this AD channel

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the sensor connected to the affected AD channel.

  2. 2

    Ensure wiring to the sensor is free from interference or damage.

  3. 3

    If the issue persists, the ECU's AD converter may be defective.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

Related Faults

ECU internal faultECU internal fault - Electronic Control Unit internal errorP0008P0008 - No signal on both crankshaft and camshaft speed sensorP0122P0122 - Accelerator sensor 1 error (voltage low)
Source: Bosch ECU Troubleshooting
Open Manual (Page 7)Search more codes in this manual