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Huh. Shouldn't be on 30 minutes after startup that's for sure.
The indicator lamp just indicates that the ECM has turned the heater ON. It is not a trouble lamp. It illuminates anytime the ECM requests the AIH heater.
It's the equivalent of a "wait to start" lamp on older stuff equipped with glow plugs. But in the AIH's case, the heating element is still used while the engine is in warmup.
The indicator lamp just indicates that the ECM has turned the heater ON. It is not a trouble lamp. It illuminates anytime the ECM requests the AIH heater.
It's the equivalent of a "wait to start" lamp on older stuff equipped with glow plugs. But in the AIH's case, the heating element is still used while the engine is in warmup.