Conditions for diagnostic trouble code (DTC):
1) Preheating requested
2) The voltage at pin A14.EB:14 is less than 29?% of the battery voltage
Observable symptoms
1) Intake air heater (IAH) does not function
2) White smoke at cold start
3) Difficult to start in extreme cold
Probable cause
1) Wiring harness
2) Connector
3) Intake air heater (IAH) relay
![John Deere Parts Advisor is an online platform that provides access to a complete catalog of heavy equipment parts, including Hitachi equipment. Users benefit from detailed part information and easy searches by model. Regular updates and additional resources ensure accurate and timely availability of parts in the construction, agriculture and forestry sectors. Specialized manuals, videos and guides help maximize equipment performance and efficiency. Hitachi parts and multiple brand options enhance the platform's usefulness for industry professionals seeking reliable maintenance solutions. JOHN DEERE PARTS ADVISOR & HITACHI 2.24.2 [2023.07] EPC](https://dtctrucks.com/wp-content/uploads/2024/04/1-300x300.webp "John Deere Parts Advisor is an online platform that provides access to a complete catalog of heavy equipment parts, including Hitachi equipment. Users benefit from detailed part information and easy searches by model. Regular updates and additional resources ensure accurate and timely availability of parts in the construction, agriculture and forestry sectors. Specialized manuals, videos and guides help maximize equipment performance and efficiency. Hitachi parts and multiple brand options enhance the platform's usefulness for industry professionals seeking reliable maintenance solutions. JOHN DEERE PARTS ADVISOR & HITACHI 2.24.2 [2023.07] EPC")
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