Cars · Wiring

OBD2P5M Automatic to Manual Transmission Conversion

Convert OBD2P5M ECU from automatic to manual transmission by moving a 0-ohm SMD resistor from RP13 to RP14 on the PCB.

Iniciante 5

Overview

This conversion requires moving a single 0-ohm SMD resistor on the PCB to reconfigure the ECU for manual transmission operation.

Conversion Procedure

Required Component

  • 0-ohm SMD Resistor — Identified by the 000 marking printed on the component.

Steps

  1. Locate RP13 — Find the 0-ohm resistor at position RP13 on the underside (bottom) of the PCB.
  2. Remove the Resistor — Carefully desolder the 0-ohm resistor from RP13 using appropriate SMD removal techniques.
  3. Install at RP14 — Solder the resistor to position RP14 on the top side of the PCB.

Important

Ensure the 0-ohm resistor is properly seated and all solder joints are secure before powering the ECU. Poor solder connections may cause intermittent electrical faults.

Verification

After completing the resistor relocation, verify that:

  • The resistor is firmly soldered at RP14.
  • No solder bridges or cold joints are present.
  • The ECU recognizes manual transmission operation during diagnostics.

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