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DTC › WTA2 WTA2 / 10F0E7

0x10F0E7, Heater Interlock

â–¶ How to fix

- refer to other failures - unlock heater - for further information see workshop manual - clear error memory

What you'll see

No driver-visible symptom recorded.

System reaction

- this DTC is stored in the error memory - heating operation is stopped - heater is locked Heater Actions: * This DTC is a warning * Permanent Interlock is activated

Diagnostic depth

Detection

Enable Condition: This error is monitored after another error is detected. Mature Threshold: One or more of the error counters has reached the maximum value: - flame interruption counter > FAZ_MAX (typical value 6) - error counter > SZ_MAX (typical value 8) - overheating (coolant temperature) > UEHZ_MAX (typical value 3) - overheating (exhaust gas temperature) > OAGZ_MAX (typical value 3) - failed starts > FSZ_MAX (typical value 5) This DTC is reported by the heater core software. De-mature Criteria: Heating request is switched off (HeaterModeRequest = DeactivateHeater) and heater is unlocked via diagnosis. Detecting (setting) a DTC means: DTC status bits TestFailed and ConfirmedDTC are changing from 0/0 or 0/1 to 1/1. Resetting (de-mature) a DTC means: DTC status bit TestFailed is 1 to 0.

Possible cause

- refer to the other failures

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