Skip to content

ESP_a178 — IBST Output Rod Act Invalid

Full alert identifier: ESP_a178_IBSTOutputRodActInvalid

Alert description

The Electronic Stability Program (ESP) electronic control unit (ECU) is receiving invalid messages from the iBooster (IBST) ECU on the Party controller area network (CAN) bus.

Potential impact

Brake boost functionality may be limited or unavailable. Hydraulic Brake Compensation (HBC) may be activated.

Set condition

The ESP ECU receives invalid messages from the IBST ECU on the Party CAN bus.

Clear condition

The ESP ECU begins receiving valid messages from the IBST ECU on the Party CAN bus.

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of ESP_a178.

Browse all ESP alert codes