This guide is customized for your 2021 Honda PASSPORT
P0989: P0989: Transmission Advanced System - Torque Converter Clutch Solenoid Circuit Malfunction
on 2021 Honda PASSPORT
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 P0989 Mean on 2021 Honda PASSPORT?
Symptoms
- • Transmission slips
- • hesitation
- • or hesitation during acceleration
- • unusual noises
- • or difficulty shifting gears.
Common Causes
- • Faulty torque converter clutch solenoid
- • wiring issues
- • or TCM software problems.
How to Fix P0989 on 2021 Honda PASSPORT
1. Check and clear any trouble codes. 2. Inspect and clean the torque converter clutch solenoid and wiring harness. 3. Replace the torque converter clutch solenoid if faulty. 4. Update TCM software if necessary.
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Essential Tool
Related Diagnostic Codes
Other codes that may appear with P0989
P0987: Transmission Advanced System - Transmission Control Module (TCM) Malfunction
P0988: Transmission Advanced System - Transmission Control Module (TCM) Malfunction
P0990: Transmission Advanced System - Pressure Control Solenoid 'A' Circuit Low
P0991: Transmission Advanced System - Pressure Control Solenoid 'A' Circuit Low
💡 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