B1709 – ETACS-ECU (EEPROM), B1710 – ETACS-ECU (ROM) MMC Colt

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COMMENTS ON TROUBLE SYMPTOM

If an error is detected more than once during the reading from/writing to the EEPROM of the ETACS-ECU, the ETACS-ECU stores the diagnosis code No. B1709.

If a malfunction is found by the “ROM check” that is performed when the ETACS-ECU is reset or is resumed from the sleep mode, the ETACS-ECU stores the diagnosis code No. B1710.

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PROBABLE CAUSES

Malfunction of the ETACS-ECU

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DIAGNOSIS PROCEDURE

Check whether the diagnosis code is reset.

Q. Is the diagnosis code set?