Ford Falcon. Manual — part 326
412-04-17 Control
Components 412-04-17
DIAGNOSIS AND TESTING (Continued)
Test Step
Result / Action to Take
B4
MODULE FUNCTION CHECK - EVAPORATOR SENSOR
TEMPERATURE
Reconnect the sensor 2 way connector D to the HIM.
Yes
System OK.
Connect WDS Scan Tool.
No
Read the A_CT value (Evaporator sensor temperature) from the HIM.
Go to B5
Does the value closely match the temperature thermometer
located in the face outlet (+/- 5 degC) as per table B?
B5
MODULE FUNCTION CHECK - EVAPORATOR SENSOR
SUPPLY VOLTAGE
Check the Evaporator sensor supply voltage with a voltmeter.
Yes
Go to B6
With the Evaporator sensor 2 way connector D inserted in to the HIM,
attach the positive probe to pin 2 (LHS) and the negative probe to pin
No
1 (RHS) of the rear of the Evaporator sensor connector. Refer to
Replace HIM.
Evaporative sensor connector diagram for correct pin designations.
Using table B, compare the voltage reading against a temperature
probe located in the face outlet with the HVAC Blower fan operating at
high speed.
Does the voltage value closely match the temperature
thermometer located in the face outlet (+/- 5 degC)?
B6
MODULE OUTPUT CHECK - EVAPORATOR SENSOR
SUPPLY VOLTAGE
Remove evaporator sensor plug from HIM.
Yes
System OK.
Using a voltmeter, attach the probes to the HIM output terminals for
Clear DTC.
the evaporator sensor.
No
Ensure ignition key is ON.
Replace HIM.
Is the voltage reading within 4.5-5.5 Volts?
Temperature
Sensor
Sensor Voltage
Table B
Degrees
Resistance
(Volts)
NOTE: Use this table as a guide only. Minor
(Celsius)
(Ohms)
variations between actual readings are acceptable.
30
1.21k
0.96
Temperature
Sensor
Sensor Voltage
35
0.98k
0.81
Degrees
Resistance
(Volts)
40
0.75k
0.68
(Celsius)
(Ohms)
45
0.66k
0.57
-30
25.37k
4.16
50
0.55k
0.48
-25
18.90k
3.94
55
0.45k
0.41
-20
14.19k
3.68
-15
10.73k
3.39
-10
8.17k
3.08
-5
6.27k
2.76
0
4.85k
2.44
5
3.78k
2.13
10
2.97k
1.84
15
2.35k
1.56
20
1.87k
1.34
25
1.50k
1.14
A12342 en
412-04-18 Control
Components 412-04-18
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST C : ACTUATOR — RECIRCULATION DOOR (ACC / MCC / HTR)
NOTE: REFER to Section 412-02 SYMPTOM CHART BEFORE PROCEEDING
Test Step
Result / Action to Take
C1
SYSTEM ON DEMAND SELF TEST
Start and run engine until normal operating temperature is reached.
Yes
Go to C3
Ensure vehicle battery voltage is within normal operating range
(12~14volts) before proceeding with test.
No
Go to C2
Using WDS scan tool, clear all DTC’s set in the HIM memory.
Using WDS scan tool, perform HVAC On Demand Self Test.
Is code B1242 set?
C2
SYSTEM ON DEMAND SELF TEST - DTC CHECK
Yes
Is code B2416 set?
Go to C3
No
System OK
C3
VISUAL INSPECTION - RECIRC DOOR LEVER
ENGAGEMENT
Check Recirc door HVAC/HIM coupling levers for correct
Yes
engagement.
Reconnect levers.
Go to C1
Are the levers disengaged?
No
Go to C4
C4
WDS FUNCTIONAL TEST - FRESH / RECIRC
Turn Ignition ON and and run engine.
Yes
System OK
Connect WDS Scan Tool.
No
Remove glove compartment and visually check operation of the
Go to C5
Recirc door while selecting Recirc then Fresh using RECIRDTP.
Does the Recirc door fully seal at open and closed positions?
C5
VISUAL INSPECTION - RECIRC DOOR OBSTRUCTION
Check Recirc door and Recirc door coupling levers for interference
Yes
from external objects.
Remove obstructions.
Go to C1
Are there any obstructions?
No
Go to C6
C6
SYSTEM ON DEMAND SELF TEST - FAULT
RECONFIRMATION
Start and run engine until normal operating temperature is reached.
Yes
Replace HIM
Ensure vehicle battery voltage is within normal operating range
(12~14volts) before proceeding with test.
No
System OK
Using WDS scan tool, record all DTC’s set in the HIM memory.
Using WDS scan tool, clear all DTC’s set in the HIM memory.
Using WDS scan tool, perform HVAC On Demand Self Test.
Is code B1242 set again?
A12342 en
412-04-19 Control
Components 412-04-19
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST D : ACTUATOR — SCREEN / FACE DOOR (ACC / MCC / HTR)
NOTE: REFER to Section 412-02 SYMPTOM CHART BEFORE PROCEEDING
Test Step
Result / Action to Take
D1
SYSTEM ON DEMAND SELF TEST
Start and run engine until normal operating temperature is reached.
Yes
Go to D2 if code B1262 is set.
Ensure vehicle battery voltage is within normal operating range
Go to D2 if code B2926 is set.
(12~14volts) before proceeding with test.
No
Using WDS scan tool, record all DTC’s set in the HIM memory.
System OK Refer to Section 413-08.
Using WDS scan tool, clear all DTC’s set in the HIM memory.
Using WDS scan tool, perform HVAC On Demand Self Test.
Are any DTC codes set?
D2
WDS FUNCTIONAL TEST - SCREEN
Turn Ignition ON and and run engine.
Yes
Go to D3
Connect WDS Scan Tool.
No
Select Screen using CCACTM.
Replace HIM
Does the air flow from the Screen outlet?
D3
WDS FUNCTIONAL TEST - FACE
Select Face using CCACTM.
Yes
System OK
Does the air flow from the Face outlet?
No
Replace HIM
PINPOINT TEST E : ACTUATOR — PASSENGER AIR TEMPERATURE MIX. (ACC / MCC / HTR)
NOTE: This actuator is utilized to control air temperature to both passenger and driver by the single zone
manual climate control system. It is used to control only the passenger side air temperature for dual zone
automatic climate control system.
NOTE: REFER to Section 412-02 SYMPTOM CHART BEFORE PROCEEDING
Test Step
Result / Action to Take
E1
SYSTEM ON DEMAND SELF TEST
Start and run engine until normal operating temperature is reached.
Yes
Go to E2 if code B1266 is set.
Ensure vehicle battery voltage is within normal operating range
Go to E2 if code B2013 is set.
(12~14volts) before proceeding with test.
No
Using WDS scan tool, record all DTC’s set in the HIM memory.
System OK Refer to Section 413-08.
Using WDS scan tool, clear all DTC’s set in the HIM memory.
Using WDS scan tool, perform HVAC On Demand Self Test.
Are any DTC codes set?
A12342 en
412-04-20 Control
Components 412-04-20
DIAGNOSIS AND TESTING (Continued)
Test Step
Result / Action to Take
E2
WDS FUNCTIONAL TEST - PASSENGER AIR MIX FULL
HOT
Connect WDS Scan Tool.
Yes
Go to E3
Turn Ignition ON and and run engine.
No
Ensure engine is running and at normal operating temperature.
Ensure engine cooling system is operating
Select Passenger Full Hot using PBDTP.
correctly.
Go to E3
Is the airflow from the HVAC hot (LHS for ACC system, Both
sides for MCC / HTR)?
E3
WDS FUNCTIONAL TEST - PASSENGER AIR MIX FULL
COLD
Select Passenger Full Cold using PBDTP.
Yes
System OK
Is the airflow from the HVAC cool (LHS for ACC system, Both
sides for MCC / HTR)?
No
Replace HIM if DTC code B1266 or B2013 is
set.
NOTE: The temperature test is a subjective check
Incorrect temperature performance without the setting
only and careful assessment must be performed to
of either DTC after performing the HVAC On Demand
correctly diagnose Full cooling and Full heating
Self Test does not necessitate replacement of the
operation from the HVAC. The temperature can vary
HIM.
depending on factors such as A/C ON/OFF (where
fitted), environment air temperature drawn in to HVAC
unit and engine coolant system level and temperature.
PINPOINT TEST F : ACTUATOR — FLOOR / CONSOLE DOOR
NOTE: REFER to Section 412-02 SYMPTOM CHART BEFORE PROCEEDING
Test Step
Result / Action to Take
F1
SYSTEM ON DEMAND SELF TEST
Start and run engine until normal operating temperature is reached.
Yes
Go to F2 if code B2010 is set.
Ensure vehicle battery voltage is within normal operating range
Go to F2 if code B2011 is set.
(12~14volts) before proceeding with test.
No
Using WDS scan tool, record all DTC’s set in the HIM memory.
System OK Refer to Section 413-08.
Using WDS scan tool, clear all DTC’s set in the HIM memory.
Using WDS scan tool, perform HVAC On Demand Self Test.
Are any DTC codes set?
F2
WDS FUNCTIONAL TEST - FLOOR OPEN
Turn Ignition ON and and run engine.
Yes
Go to F3
Connect WDS Scan Tool.
No
Select Floor using CCACTM.
Replace HIM
Does the air flow from the Floor outlet?
F3
WDS FUNCTIONAL TEST - FLOOR CLOSED
Select Face using CCACTM.
Yes
System OK
Does the air flow from the Floor outlet?
No
Replace HIM
A12342 en
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст