What amperage fuse protects the A/C circuit in this diagram?

A 25A fuse at connector B03, fed through a fusible link (B16/B07) from the battery.

What switch is used on manual transmission versions of this A/C circuit?

A clutch pedal position switch (connector E62, pins 1 and 2, with OFF/ON positions) in the version; vehicles use a shift switch (E54/C10).

Which relays control the condenser fan and compressor?

The condenser fan motor relay (connector B05) and the A/C compressor relay (connector B04), both controlled by the A/C amplifier.

What component is in series with the compressor control circuit for pressure protection?

A dual pressure switch (connector B02) with OFF/ON contact positions, wired via a Y (yellow) wire.

What wire colors are used in this A/C circuit?

B/R, B/Y, R, Bl/R, P, Lg, B/W, Y, Bl/B and B are shown at various points in the diagram.

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Suzuki Samurai A/C Wiring Diagram - Compressor, Condenser Fan Relay & Amplifier

Wiring diagram: A/C amplifier, condenser fan motor relay, compressor relay, dual pressure switch and compressor

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Wiring diagram of the air conditioning system showing the A/C amplifier, condenser fan and compressor relays and dual pressure switch.

AI caption August 2006 · Photo 38 of 86

This is one page of a factory-style automotive wiring diagram (uploaded as HVAC1.gif) showing the A/C (air conditioning) control circuit. Power flows from the battery through a fusible link (connectors B16/B07) and a 25A fuse (B03), and from the ignition switch ST terminal (E42). For manual transmission (<M/T>) vehicles the circuit runs through a clutch pedal position switch (E62); for automatic transmission (<A/T>) vehicles it runs through a shift switch (E54/C10, with connector variants C18 and C07). Both paths feed the A/C amplifier via connectors B14, B13/E46 and E13/B06. The amplifier controls the condenser fan motor relay (B05) and the A/C compressor relay (B04); the compressor circuit passes through a dual pressure switch (B02, with OFF/ON positions). Outputs drive the condenser fan motor (B01, grounded through B18/B19) and the A/C compressor clutch (B09). Wire color codes shown include B/R, B/Y, R, Bl/R, P, Lg, B/W, Y, Bl/B and B. Connector pin numbers are given at each junction, useful for tracing and testing the A/C system wiring.

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Frequently asked questions

What amperage fuse protects the A/C circuit in this diagram?: A 25A fuse at connector B03, fed through a fusible link (B16/B07) from the battery.
What switch is used on manual transmission versions of this A/C circuit?: A clutch pedal position switch (connector E62, pins 1 and 2, with OFF/ON positions) in the <M/T> version; <A/T> vehicles use a shift switch (E54/C10).
Which relays control the condenser fan and compressor?: The condenser fan motor relay (connector B05) and the A/C compressor relay (connector B04), both controlled by the A/C amplifier.
What component is in series with the compressor control circuit for pressure protection?: A dual pressure switch (connector B02) with OFF/ON contact positions, wired via a Y (yellow) wire.
What wire colors are used in this A/C circuit?: B/R, B/Y, R, Bl/R, P, Lg, B/W, Y, Bl/B and B are shown at various points in the diagram.