2014 Kia Rio L4-1.6L: Manual A/C Circuit Diagram

This document provides a detailed electrical wiring diagram for the manual air conditioning (A/C) system of a 2014 Kia Rio equipped with a 1.6L L4 engine. The information is sourced from ALLDATA Repair.

Page 1 of 2: Component Connections

This section details the wiring connections for various components within the manual A/C system.

Blower System Components:

Blower Resistor: Connected to the blower motor, with wires of colors WHT (1), BLU (2), BRN (4), and RED (3).
Blower Motor: Located under the right side of the dash. It has connections for RED (1), WHT (2), and RED (M).
Blower Switch: Features settings for HI (4), M/HI (2), M/LO (3), LO (5), OFF, and GND (1) with corresponding wire colors RED, BRN, BLU, WHT, WHT, and BLK.
Blower Relay: Located in the PCB Fuse & Relay Box (integral to the Engine Room Junction Box). It is controlled by a BLOWER FUSE (40A) and connects to various points including E/R-EGGGA, E/R-EGGGB, and the I/P JUNCTION BOX.

Control Module and Sensors:

A/C Control Module (Center of Dash): Receives inputs from various switches and sensors. Key connections include:
- MODE ACTR VENT (1), MODE ACTR DEF (2), INTAKE ACTR FRE (3), INTAKE ACTR REC (4), TEMP ACTR COOL (5), TEMP ACTR WARM (6).
- SEAT WARMER LO (10), SEAT WARMER HI (11).
- C-CAN LO (12), C-CAN HI (13).
- BLOWER F/B (14), GND (15), MODE ACTR F/B (16), INTAKE ACTR F/B (17), TEMP ACTR F/B (18), VREF (+5V) (19).
- REAR DEFO SW SIG (21), REAR DEFO SW IND (22), DETENT OUT (+) (23).
- EVAPORATOR SENS (+) (24), AMBIENT TEMP SENS(+) (25).
- ECV IN (26), ECV OUT (27).
- ON INPUT (1), ILL(-) (2), SENS GND (3), MEMORY POWER (4), ILL(+) (5), BLOWER SIG (LO) (6), ON/START INPUT (7), GND (8).
Intake Actuator: Located behind the right side of the dash.
Temperature Actuator: Located under the center of dash.
Mode Actuator: Located top left side of dash.
Ambient Temperature Sensor: Located in the right front of the engine compartment.
Evaporator Sensor: Located under the center of dash.

Other Connections:

GM02 (Top Left Side of Dash): A junction point for several circuits.
GGGG03 (Behind Left End of Front Bumper): Another junction point.
SEATS SYSTEM: Connected via GRY/ORG (11).
COMPUTER DATA LINES SYSTEM: Connected via BLU (13) and RED (14).
DEFOGGER SYSTEM: Connected via PNK/BLK (24).
INTERIOR LIGHTS SYSTEM: Connected via PNK (6) and YEL (5).

Page 2 of 2: System Control and Power

This section illustrates the power supply, relays, and control signals for the A/C system, including cooling fan operation.

Power and Relays:

PCB Fuse & Relay Box (Integral to Engine Room Junction Box): Contains fuses and relays for system power.
- ECU1 FUSE (30A)
- C/FAN FUSE (40A)
- SENSOR1 FUSE (10A)
Engine Control Relay: Controls various engine functions.
Cooling Fan (Low) Relay: Controls the low-speed operation of the cooling fan.
Cooling Fan (High) Relay: Controls the high-speed operation of the cooling fan.

Engine Control Module (ECM/PCM) Connections:

The ECM/PCM (Left Rear of Engine Compartment) manages A/C functions and receives signals from various sensors and actuators. Key connections include:

A/C Pressure Transducer: Connected via BLU (3) and BRN (1).
Engine Coolant Temperature Sensor (Rear of Engine): Connected via BLU (3) and PNK (1).
Cooling Fan Control:
- C/FAN (HI) RLY CTRL (BRN/ORG 36)
- C/FAN (LO) RLY CTRL (GRY 20)
- ENGINE CTRL RLY CTRL (BLU/ORG 50)
Computer Data Lines System:
- C-CAN LO (BLU 77)
- C-CAN HI (RED 60)
Sensor Signals:
- SENS POWER (BLU 15)
- SENS SIG (ORG 44)
- SENS GND (BRN 25)
- ECT GND (GRN 13)
- ECT SIG (PNK 82)

Actuators and Motors:

Electronic A/C Compressor: Controlled by the system.
Cooling Fan Motor (Front of Engine Compartment): Operates at different speeds based on relay control.

Other System Connections:

GGGG04 (Behind Left End of Front Bumper): A junction point for cooling fan circuits.
A/T: Automatic Transmission related signals.
M/T: Manual Transmission related signals.

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