Toyota
Ford Kuga
 Service Manual
Climate Control System » Climate Control System
Sequence of A/C Request Signal

NOTE: The electronic automatic temperature control (EATC) module is integrated into the air conditioning control assembly.

NOTE: The generic electronic module (GEM) is an integral part of the central junction box (CJB).

After actuating the A/C ON/OFF switch integrated into the A/C control assembly, an A/C request signal is sent from the A/C control assembly (vehicles with EATC: EATC module) to the GEM.

From there, the signal is sent to the instrument cluster via the MS-CAN bus. A gateway is installed in the instrument cluster, which establishes the connection between the MS-CAN bus and the HS-CAN bus.

After the signal has been converted in the gateway, it is relayed to the powertrain control module (PCM) via the HS-CAN bus. Once all the required parameters have been met, the PCM switches on the refrigerant compressor and thus the A/C system via the A/C clutch relay.

1. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.

2. If the cause is not visually evident, verify the symptom and refer to the diagnostic tab within the Ford approved diagnostic tool.

Air Conditioning (A/C) System Flushing

Information not available at this time.

    More about «Climate Control System»:

    Inspection and Checking

    Refrigerant Circuit - Quick Check

    Sequence of A/C Request Signal

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