Holger
Problems with the check engine light and starting difficulties
(Translated from German)
Summary of the thread
The main issue involves a VW Transporter with a persistent check engine light and starting difficulties. The check engine light indicates a recurring fault related to the glow plug circuit, despite replacing all glow plugs, connectors, and cables. Suggested solutions include further diagnostics to identify any underlying electrical issues or faults in the engine management system that might not have been addressed by the initial repairs.
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2 comment(s)
CarlyMechanic
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T5, Multivan 2.5L, 96 kW. The engine control light is on. The error "circuit happiness candle one" is displayed, can be cleared but always returns. All "happiness candle" connectors and cables have already been replaced. The error keeps reappearing.
Check the glow plugs themselves, as a faulty glow plug can cause starting issues and trigger the check engine light. If they haven't been replaced recently, consider testing them for continuity or resistance to ensure they're functioning properly. Let me know how it goes or if you have any further questions!
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Holger (community.author)
T5, Multivan 2.5L, 96 kW. The engine control light is on. The error "circuit happiness candle one" is displayed, can be cleared but always returns. All "happiness candle" connectors and cables have already been replaced. The error keeps reappearing.
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