35-Pin ECU Computer Board Wire Harness Connector – Female OEM

This 35-pin female connector is used in engine control unit (ECU) and automotive computer board harnesses. The high-density 35-pin configuration integrates sensor inputs, actuator outputs, CAN bus, power, and ground circuits for the ECU. Available bare or with 30cm pre-wired leads for direct splice installation.

Key Specifications

Why ECU Connectors Fail

High-pin-count ECU connectors are vulnerable to terminal corrosion from coolant leaks, oil contamination, and moisture ingress near the firewall. A degraded 35-pin ECU connector causes multiple simultaneous fault codes, engine misfires, limp mode, or complete no-start conditions. Replacing the connector and re-pinning terminals restores full ECU communication and eliminates phantom fault codes.

Variant Guide

• Female – Bare 35-pin housing with terminals for custom wiring repair
• Female 30CM – Pre-wired with 30cm leads for direct splice-in replacement

Installation Steps

1. Disconnect the vehicle battery and allow ECU capacitors to discharge (5 minutes)
2. Locate the 35-pin ECU connector on the engine control module
3. Use a terminal extraction tool to carefully remove each terminal from the original housing
4. Transfer terminals one-by-one into the new housing, maintaining pin position
5. Reconnect and use a compatible scanner to clear fault codes and verify ECU communication

Frequently Asked Questions

Q: What vehicles use a 35-pin ECU connector?
A: 35-pin ECU connectors are used across multiple automotive brands and platforms. Cross-reference your ECU part number and wiring diagram to confirm fitment.

Q: What fault codes indicate a failed ECU connector?
A: Multiple simultaneous P-codes, U-codes (CAN bus communication faults), engine misfires (P030x), and limp mode activation are common symptoms of a degraded ECU connector.

Q: Do I need to recode the ECU after replacing the connector?
A: No. Replacing the connector does not affect ECU programming. Clear fault codes after installation and verify normal operation.

Q: Are all 35 terminals included?
A: Yes, the connector set includes the housing and all required terminals.

Compatible Applications

• Engine control unit (ECU) harness repair
• Automotive computer board connector replacement
• Multi-brand ECU harness applications using 35-pin female connectors