Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Honda Pilot EX, FWDFACTORY OEM SERVICE PROCEDURE
Engine Control System - DTC Diagnostics (1 Of 6)
- How to Information
- How to Troubleshoot the A/T System
- How to Check for DTCs with the Honda Diagnostic System (HDS)
- Symptom Troubleshooting Versus DTC Troubleshooting
- How to Troubleshoot Circuits at the PCM Connectors
- Clear A/T DTCs Procedure
- OBD Status
- How to End a Troubleshooting Session (required after any troubleshooting)
- Failure Reproduction Technique
- Self-Diagnosis
- Fail-Safe Function
- How to Troubleshoot the Brake Booster Pressure Monitoring System
- How to Troubleshoot the A/T System
- DTC Troubleshooting
- DTC P0069
- DTC P006A
- DTC P006A, P0101
- DTC P0087 (6-Speed A/T, '16-'18 9-Speed A/T)
- DTC P0087 (19-21 9-Speed A/T)
- DTC P0088 (6-Speed A/T, '16-'18 9-Speed A/T)
- DTC P0088 (19-21 9-Speed A/T)
- DTC P00FE
- DTC P0101
- DTC P0102 (6-Speed A/T, '16-'18 9-Speed A/T)
- DTC P0102 (19-21 9-Speed A/T)
- DTC P0103 (6-Speed A/T, '16-'18 9-Speed A/T)
- DTC P0103 (19-21 9-Speed A/T)
- DTC P0105 (18-21 6-Speed A/T, '18 9-Speed A/T)
- DTC P0105 (19-21 9-Speed A/T)
- DTC P0106
- DTC P0107 (6-Speed A/T, '16-'18 9-Speed A/T)
- DTC P0107 (19-21 9-Speed A/T)
- DTC P0108 (6-Speed A/T, '16-'18 9-Speed A/T)
- DTC P0108 (19-21 9-Speed A/T)
- DTC P0111, P011B
- DTC P0112 (6-Speed A/T, '16-'18 9-Speed A/T)
- DTC P0112 (19-21 9-Speed A/T)
- DTC P0113 (6-Speed A/T, '16-'18 9-Speed A/T)
- DTC P0113 (19-21 9-Speed A/T)
- DTC P0115 (18-21 6-Speed A/T, '18 9-Speed A/T)
- DTC P0115 (19-21 9-Speed A/T)
- DTC P0116
- DTC P0117 (6-Speed A/T, '16-'18 9-Speed A/T)
- DTC P0117 (19-21 9-Speed A/T)
- DTC P0118 (6-Speed A/T, '16-'18 9-Speed A/T)
- DTC P0118 (19-21 9-Speed A/T)
- DTC P011A
- DTC P0121 (18-21 6-Speed A/T, '18 9-Speed A/T)
- DTC P0121 (19-21 9-Speed A/T)
- DTC P0122 (6-Speed A/T, '16-'18 9-Speed A/T)
- DTC P0122 (19-21 9-Speed A/T)
- DTC P0123 (6-Speed A/T, '16-'18 9-Speed A/T)
- DTC P0123 (19-21 9-Speed A/T)
- DTC P0125
- DTC P0128
- DTC P0130, P0150
- DTC P0133, P0153 (6-Speed A/T, '16-'18 9-Speed A/T)
- DTC P0133, P0153 (19-20 9-Speed A/T
- DTC P0133, P0153 (21 9-Speed A/T)
- DTC P0134, P0154 (6-Speed A/T, '16-'18 9-Speed A/T)
- DTC P0134, P0154 (19-21 9-Speed A/T)
- DTC P0135, P0155 (6-Speed A/T, '16-'18 9-Speed A/T)
- DTC P0135, P0155 (19-21 9-Speed A/T)
- DTC P0137, P0157 (6-Speed A/T, '16-'18 9-Speed A/T)
- DTC P0137, P0157 (19-21 9-Speed A/T)
- DTC P0138, P0158 (2016 2017)
- DTC P0138, P0158 ('18-19 6-Speed A/T, '18 9-Speed A/T)
- DTC P0138, P0158 ('19 9-Speed A/T)
- DTC P0138, P0158 ('20-21 9-Speed A/T)
- DTC P0138, P0158 (20 6-Speed A/T)
- DTC P0139, P0159
- DTC P0141, P0161 (6-Speed A/T, '16-'18 9-Speed A/T)
- DTC P0141, P0161 (19-21 9-Speed A/T)
- DTC P0171, P0174 (6-Speed A/T, '16-'18 9-Speed A/T: KX)
- DTC P0171, P0174 (6-Speed A/T, '16-'18 9-Speed A/T: KA, KC)
- DTC P0171, P0174 (19-21 9-Speed A/T)
- DTC P0172, P0175 (6-Speed A/T, '16-'18 9-Speed A/T: KX)
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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