Dtc B1514: Air Flow Control Actuator (Motor) And/Or Its Circuit Malfunction - Suzuki 2006 SX4 Service Manual

DTC B1514: Air Flow Control Actuator (Motor) and/or Its Circuit Malfunction

Wiring Diagram
2
[D]
BRN/YEL
BRN/WHT
3
WHT/BLU
4
[D]: Air flow actuator motor drive circuit
1. HVAC control module
DTC Detecting Condition and Trouble Area
Motor of air flow control actuator does not move longer than specified time.
DTC Troubleshooting
Step
1 Was "Air Conditioning System Check" performed?
2 DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ignition switch to ON position and check DTC.
Is DTC B1512 detected together?
3 Visual Check
Check if there is any obstruction in operating range of
actuator linkage and if actuator linkage operates smoothly.
Is it in good condition?
4 Wire harness check
1) Turn ignition switch to OFF position.
2) Disconnect connectors from air flow control actuator and
HVAC control module.
3) Check for proper connection to actuator motor drive
circuit terminals of air flow control actuator and HVAC
control module connectors.
4) If OK, check that actuator motor drive circuit of air flow
control actuator is as follows.
• Wiring harness resistance of each actuator motor
drive circuit is less than 3 Ω
• Insulation resistance of each actuator motor drive
circuit is infinity between air flow control actuator
connector and vehicle body ground
• Circuit voltage of each actuator motor drive circuit is 0
– 1 V with ignition switch turned ON
Are they in good condition?
1
12V
G20-15
G20-16
5V
5V
WHT G20-12
G20-28
ORN G20-24
DTC Detecting Condition
Action
Air Conditioning System: Automatic Type 7B-67
14 13 12 11 10 9 8
30 29 28 27 26 25 24
2. Air flow control actuator
3. To temperature control actuator
Go to Step 2.
Go to "DTC B1512: Air
flow Control Actuator
(Position Sensor) and/or
Its Circuit Malfunction".
Go to Step 4.
Go to Step 5.
G20
7 6 5 4 3
23 22 21 20 19 18 17
4. To other sensors
Trouble Area
• Air flow control actuator circuit
• Air flow control linkage
• Air flow control actuator
• HVAC unit
• HVAC control module
Yes
Go to "Air Conditioning
System Check".
Go to Step 3.
Obstruction in operating
range of actuator
linkage, actuator linkage
faulty and/or internal
fault of HVAC unit.
Actuator motor drive
circuit(s) is open, short
or high resistance.
S6RW0D7224016
2 1
16 15
I6RW0C722007-01
No