← View Generic P0699 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

P0699: P0699: Engine Control Module (ECM) Output Circuit Malfunction

on 2021 Honda PASSPORT

Fix Cost

$100 - $500

Parts & Labor

Difficulty

3/5

1-2 hours

DIY Possible?

❌ No

Pro recommended

Your Vehicle

2021 Honda

PASSPORT

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Important for 2021 Honda PASSPORT Owners

Before starting repairs, verify which engine your 2021 Honda PASSPORT has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does P0699 Mean on 2021 Honda PASSPORT?

The Engine Control Module (ECM) output circuit has malfunctioned, preventing the ECM from sending proper signals to other engine control systems.

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Symptoms

• Engine stalling
• poor engine performance
• rough idling
• and decreased fuel efficiency

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Common Causes

• Faulty ECM output circuit
• damaged wiring
• or a malfunctioning ECM

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How to Fix P0699 on 2021 Honda PASSPORT

1. Check the ECM output circuit for damage or corrosion and repair or replace as needed. 2. Inspect and clean the wiring harness. 3. Update the ECM software if necessary. 4. Replace the ECM if it is faulty.

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Parts for 2021 Honda PASSPORT

ECM output circuit Shop ↗ wiring harness Shop ↗

Essential Tool

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OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with P0699

P0697 Sequential Code

💡 Why These Codes Are Related:

• Similar Issues: Same root cause or component failure
• Related Problems: Often occur together due to system interactions
• Sequential Codes: Progressive failure stages or multiple sensors
• Same System: Components within the same automotive system