Outside temperature sensor (ECC), value
Measurement range: 0-5 V
The climate control module calculates the outside temperature based on the signal voltage.
Passenger compartment temperature sensor (ECC), internal in the climate control module, value
Measurement range: 0-5 V
The climate control module calculates the passenger compartment temperature based on the signal voltage.
Evaporator temperature sensor (Electronic climate control, Manual climate control), value
Measurement range: 0-5 V
The climate control module calculates the evaporator temperature based on the signal voltage.
Engine coolant temperature (ECC), value
Measurement range: 0-5 V
The climate control module calculates the engine coolant temperature (ECT) based on the signal voltage.
Temperature damper motor position sensor, value
Measurement range: 0-5 V
The climate control module calculates the damper motor position based on the signal voltage.
Air distribution damper motor position sensor, value
Measurement range: 0-5 V
The climate control module calculates the damper motor position based on the signal voltage.
Parking heater, status
Displays the status of the parking heater.
OFF = Parking heater not activated
ON = Parking heater activated
30-supply, status
Displays the status of the 30 supply to the climate control module.
OFF = 30-supply missing
ON = 30-supply present
Ignition status
Displays the status of the 15 supply (ignition) to the climate control module.
OFF = 15-supply missing
ON = 15-supply present
Generator D+ (ECC), status
Displays the status of the D+ signal to the climate control module.
OFF = D+ signal missing
ON = D+ signal present
Selected fan speed, value
Measurement range: 0-5 V
Climate control module determines how the blower fan speed should be controlled based on the signal voltage from the blower fan control.
Blower fan resupply, value
Measurement range: 0-5 V
The climate control module checks the blower fan function from the re-supplied signal voltage.
A/C on, re-supply (ECC, MCC), status
The status displays the condition of the A/C signal from the climate control module.
OFF = A/C not activated
ON = A/C activated
Recirculation switch, status
The status displays the position of the switch on the climate control panel.
Not pressed in = Recirculation switch not pressed in
Pressed in = Recirculation switch pressed in
A/C switch (ECC, MCC), status
The status displays the position of the switch on the climate control panel.
Not pressed in = A/C switch not pressed in
Pressed in = A/C switch pressed in
Heated seat switch (right), status
The status displays the position of the switch on the climate control panel.
Not pressed in = Seat heater switch (right) not pressed in
Pressed in = Seat heater switch (right) pressed in
Heated seat switch (left), status
The status displays the position of the switch on the climate control panel.
Not pressed in = Seat heater switch (left) not pressed in
Pressed in = Seat heater switch (left) pressed in
Battery voltage, value
Measurement range: 0-18.57 V
The battery voltage to the climate control module.
Rear defroster relay, status
The status displays the state of the rear defroster relay.
Not activated = The rear defroster relay not activated
Activated = The rear defroster relay is activated
Blower fan relay, status
The status displays the status of the blower fan relay (max relay).
Not activated = Blower fan relay not activated
Activated = Blower fan relay activated
Blower fan, value
Measurement range: 0-100%
The climate control module controlling speed signal, pulse width modulation (PWM) signal to the blower fan.
Recirculation LED, status
The status displays the condition of the LED in the recirculation switch on the climate control panel.
Not activated = LED not lit
Activated = LED lit
Defroster LED, status
The status displays the condition of the LED in the defroster switch on the climate control panel.
Not activated = LED not lit
Activated = LED lit
Left seat heater high LED, status
The status displays the condition of the LED in the left seat heater switch on the climate control panel.
Not activated = LED not lit
Activated = LED lit
Left seat heater low LED, status
The status displays the condition of the LED in the left seat heater switch on the climate control panel.
Not activated = LED not lit
Activated = LED lit
Right seat heater high LED, status
The status displays the condition of the LED in the right seat heater switch on the climate control panel.
Not activated = LED not lit
Activated = LED lit
Right seat heater low LED, status
The status displays the condition of the LED in the right seat heater switch on the climate control panel.
Not activated = LED not lit
Activated = LED lit
A/C on LED (ECC, MCC), status
The status displays the condition of the LED in the A/C switch on the climate control panel.
Not activated = LED not lit
Activated = LED lit
A/C off LED (ECC, MCC), status
The status displays the condition of the LED in the A/C switch on the climate control panel.
Not activated = LED not lit
Activated = LED lit
ECC time since start, value
Measurement range: 0 - 65535 seconds
The number of seconds calculated by the climate control module since the engine started and the D+ signal was supplied to the climate control module (generator charging).
Measurement range: -30 - 80°C
The outside temperature calculated by the climate control module.
Passenger compartment temperature (ECC), value
Measurement range: -30 - 80°C
The passenger compartment temperature calculated by the climate control module.
Evaporator temperature (Electronic climate control, Manual climate control), Value
Measurement range: -30 - 80°C
The evaporator temperature calculated by the climate control module.
Measurement range: -30 - 80°C
The engine coolant temperature (ECT) calculated by the climate control module.
Sun intensity (ECC), value
Measurement range: 0 - 65535 W/m 2
The sun intensity calculated by the climate control module.
A/C request (ECC, MCC), status
Indicates the status of the climate control module request for A/C.
Not requested = Air conditioning (A/C) not requested by the climate control module
Requested = Air conditioning (A/C) requested by the climate control module
Recirculation damper motor position, status
The status displays the position of the set positions of the recirculation damper motors as calculated by the climate control module.
Fresh air = the damper motor is calculated to be in fresh air.
Recirculation = the damper motor is calculated to be in recirculation.
Windshield wiper (ECC), Status
Indicates the status of the input signal from the windshield wipers.
Note. It takes approximately 1 minute for a change in status to be updated.
OFF = Windshield wipers not activated
ON = Windshield wipers activated
Blower fan relay maximum, status
The status displays the climate control module request for the blower fan relay (maximum relay).
Not activated = Blower fan relay not requested by the climate control module
Activated = Blower fan relay requested by the climate control module
Request for rear defroster, status
The status displays the climate control module request for the defroster relay
Not activated = Rear defroster relay not requested by the climate control module
Activated = Rear defroster relay requested by the climate control module
Heated Rear Windshield And Door Mirror Relay (Defroster Relay)
If the ignition is on, the relay for the heated rear windshield and door mirror relay position 1 must activate when the relay for the heated rear windshield and door mirrors is activated.
Relay coil resistance terminals #1 and #2: 78 ohms.
Scheme 58
The seat heater module and climate control module communicate via communication line terminal #A9 in the climate control module and terminal #A2 in the seat heater module (left-hand side) and terminal #A10 in the climate control module and terminal #A2 in the seat heater module (right-hand side).
This communication allows faults detected in the seat heater to be diagnosed and the selected heat level (high or low) to be controlled with different pulse trains from the climate control module.
Power supply, seat heater module terminal #A4: +Ubat (measured from power ground).
Ground terminal, seat heater module terminal #A1: 0 V (measured from power ground).
Scheme 59
Scheme 60
Seat heater pad (backrest) terminals #C1 and #C2: 1.4 ohms - 2.0 ohms.
Seat heater pad (seat) terminals #B1 and #B4: 1.7 ohms - 2.3 ohms.
Thermistor at approximately 21°C terminals #B2 and #B3: 5.5 kohms.
Note. The above values apply to both the left and right seats.
Scheme 61
Scheme 62
Motor winding terminals #2 and #6: 115 ohms.
Position sensor terminals #4 and #1 or #3: The resistance varies depending on the position of the damper motor.
Position sensor terminals #3 and #1: 4.8 kohms.
Note. The recirculation damper motor does not have a position sensor.
Scheme 63
Scheme 64
The sun sensor provides the climate control module with information about the current sun intensity.
Sun sensor, signal: #5.
Sun sensor, signal ground: #1.
Scheme 65
The outside temperature sensor provides the climate control module with data about the present outside temperature.
Outside temperature sensor, signal: #2.
Outside temperature sensor, signal ground: #1.
Note. See the table below for more information.
Scheme 66
| Temperature (°C) | Resistance (kohms) | Voltage (V) |
|---|---|---|
| 10 | 18.08 | 0.9 |
| 0 | 11.36 | 1.3 |
| 10 | 7.32 | 1.76 |
| 20 | 4.84 | 2.26 |
| 25 | 4.00 | 2.5 |
| 30 | 3.28 | 2.74 |
| 40 | 2.28 | 3.18 |
Scheme 67
The engine coolant temperature (ECT) sensor provides the climate control module with information about the present engine coolant temperature (ECT).
Engine coolant temperature sensor (ECT), signal: #2.
Engine coolant temperature sensor, signal ground: #1.
Note. See the table below for more information.
Scheme 68
| Temperature (°C) | Resistance (kohms) | Voltage (V) |
|---|---|---|
| 20 | 29.74 | 0.59 |
| 10 | 19.06 | 0.86 |
| 0 | 11.71 | 1.27 |
| 10 | 7.45 | 1.74 |
| 20 | 4.89 | 2.24 |
| 30 | 3.30 | 2.73 |
| 40 | 2.28 | 4.67 |
| 50 | 1.60 | 3.57 |
| 60 | 1.15 | 3.88 |
| 70 | 0.85 | 4.12 |
| 80 | 0.63 | 4.31 |
| 90 | 0.52 | 4.42 |
| 100 | 0.40 | 4.54 |
Scheme 69
The evaporator provides the climate control module with data about the present evaporator temperature.
Evaporator temperature sensor, signal terminal #4.
Evaporator temperature sensor, signal ground terminal #3.
Note. See the table below for more information
| Temperature (°C) | Resistance (kohms) | Voltage (V) |
|---|---|---|
| 10 | 18.08 | 0.9 |
| 0 | 11.36 | 1.3 |
| 10 | 7.32 | 1.76 |
| 20 | 4.84 | 2.26 |
| 30 | 3.28 | 2.74 |
| 40 | 2.28 | 3.18 |
Reading Off Parameters
Note. For the ECC system to function in the correct way, and to facilitate the fault-tracing, the knobs and switches on the front of the ECC control module must be in certain positions.
| Row number. | TEXT size/unit | Explanations |
|---|---|---|
| 001 | D+ =V | Voltage generator (GEN) D+. Ignition on = approximately 0.7-2 V Engine running = approximately 14.5 V |
| 002 | FAN SELECT =AUTO, 0, 1, 2, 3, 4 and 5 | Blower fan switch, position. |
| 003 | FAN =% | Fan speed selected by the ECC control module. 0-100% 0% = fan speed zero 100% = fan speed maximum NOTE When the blower fan switch is set to position 0-5, the fan speed need not correspond to this value. When the blower fan switch is set to position 5, the ECC control module connects the relay to ground. This provides the fan motor with maximum power (battery voltage). |
| 004 | AIR DISTRIBUTION CONTROL =AUTO, VENT, DEFR, FLOOR/DEFR, FLOOR, BI-LEVEL OCH BI-LEVEL | Air distribution control, position. Note that several positions may have the same designation. |
| 005 | AIR DISTRIBUTION =% | Damper motor potentiometer air distribution 0-200% 0% = DEFR 15% = DEFR 30% = DEFR 45% = FLOOR/DEFR 60% = FLOOR/DEFR 75% = FLOOR/DEFR 90% = FLOOR 100% = AUTO 105% = FLOOR 120% = FLOOR 130% = FLOOR 140% = BI-LEVEL 160% = BI-LEVEL 180% = VENT 200% = VENT |
| 006 | TEMP. SELECT =MIN, 17-27°C (11 positions, stage 1°C) and MAX | Passenger temperature selector, position |
| 007 | TEMP. DAMPER =% | Damper motor potentiometer, passenger compartment temperature 0-100% 0% = closed damper/shutter, no heating 100% = open damper/shutter, maximum heating |
| 008 | REC SWITCH =ON/OFF | Recirculation switch, position (disconnects the control module and switches to manual recirculation in ON position). |
| 009 | A/C SWITCH =ON/OFF | Air conditioning (A/C) switch, position. (disconnects A/C system in OFF position). |
| 010 | AC =ON/OFF | The A/C requests that the FENIX engine control module (ECM) starts the air conditioning (A/C) compressor. NOTE: When the air distribution control is in the DEFR position the signal is always = ON |
| 011 | SUN INTENSITY =W/m 2 | Sun intensity. 0-140 W/m 2 |
| 012 | CABIN TEMP. TEMP =°C | Passenger compartment temperature sensor |
| 013 | EVAP TEMP =°C | Evaporator temperature sensor. < or = +1°C (gasoline), < or = +3°C (diesel) = AC OFF |
| 014 | COOLANT TEMP =°C | Engine coolant temperature sensor. |
| 015 | AMB. TEMP =°C | Outside temperature sensor. |
| 016 | TIME =hours, minutes. | Time since ignition ON. |
| 017 | SPEED =km/h | Vehicle speed |
| NOTE |
|---|
| When the air distribution control is in the DEFR position the signal is always = ON |
Sensor Characteristics
| Temperature (°C) | Resistance (kohms) | Voltage (V) |
|---|---|---|
| 10 | 18.08 | 0.9 |
| 0 | 11.36 | 1.3 |
| 10 | 7.32 | 1.76 |
| 20 | 4.84 | 2.26 |
| 25 | 4.00 | 2.5 |
| 30 | 3.28 | 2.74 |
| 40 | 2.28 | 3.18 |
OUTSIDE TEMPERATURE SENSOR
| Temperature (°C) | Resistance (kohms) | Voltage (V) |
|---|---|---|
| 20 | 29.74 | 0.59 |
| 10 | 19.06 | 0.86 |
| 0 | 11.71 | 1.27 |
| 10 | 7.45 | 1.74 |
| 20 | 4.89 | 2.24 |
| 30 | 3.30 | 2.73 |
| 40 | 2.28 | 4.67 |
| 50 | 1.60 | 3.57 |
| 60 | 1.15 | 3.88 |
| 70 | 0.85 | 4.12 |
| 80 | 0.63 | 4.31 |
| 90 | 0.52 | 4.42 |
| 100 | 0.40 | 4.54 |
ENGINE COOLANT TEMPERATURE SENSOR
| Temperature (°C) | Resistance (kohms) | Voltage (V) |
|---|---|---|
| 10 | 18.08 | 0.9 |
| 0 | 11.36 | 1.3 |
| 10 | 7.32 | 1.76 |
| 20 | 4.84 | 2.26 |
| 30 | 3.28 | 2.74 |
| 40 | 2.28 | 3.18 |
EVAPORATOR TEMPERATURE SENSOR
Component resistance values
The resistance values stated below are at +20°C unless otherwise indicated.
| Component | Remarks |
|---|---|
| Outside temperature sensor | Resistance: 4°C: approximately 1.2 kohms 20°C: approximately 500 ohms |
| Coolant temperature sensor | Resistance: 10°C: approximately 20 kohms 20°C: approximately 11 kohms 30°C: approximately 8 kohms 75°C: approximately 1.5 kohms 90°C: approximately 900 ohms |
| Combustion fan | Resistance in the winding between terminals: 1-10 ohms |
| Water pump | Resistance in the winding between terminals: 1-10 ohms |
| Fuel pump (FP) | Resistance in the winding between terminals: approximately 8 ohms |
| Glow plug | Resistance: approximately 1 ohms |
| Overheat protection thermostat | Resistance: Not tripped < 3 ohms Tripped 10 kohms |