Dtc B1514: Air Flow Control Actuator And/Or Its Circuit Malfunction - Suzuki Swift Sport 2004 Service & Repair Manual

7B-60 Air Conditioning System: Automatic Type

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

Wiring Diagram
2
M BRN/WHT
BRN/YEL
WHT
WHT/BLU
ORN
1. HVAC control module
DTC Detecting Condition and Trouble Area
Difference between target opening and actual opening is higher than
specified value even though air flow control actuator has operated for 16
seconds.
DTC Troubleshooting
NOTE
• When DTC B1502, B1503 and B1513 are indicated together, it is possible that "ORN" wire circuit
open.
• When DTC B1513 is indicated together, it is possible that "WHT" wire circuit open.
Step
1 DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch and check DTC.
Is there DTC B1512?
2 Visual check
1) Check if there is any obstruction in operating range of
actuator linkage and if actuator linkage operates
smoothly.
Is it in good condition?
3 Wire harness check
1) Disconnect connector from air flow control actuator with
ignition switch turned OFF.
2) Check for proper connection to air flow control actuator
connector at "BRN/WHT" and "BRN/YEL" wire terminals.
3) If OK, measure voltage between "BRN/WHT" wire
terminal of air flow control actuator connector and
vehicle body ground with ignition switch turned ON when
air flow selector is operation to DEF direction.
Is voltage 10 – 14 V?
1
3
G51-1
G51-2
5V
G52-1
5V
G52-14
G52-3
4
2. Air flow control actuator
DTC Detecting Condition
Action
12V
G52
8 7 6 5 4 3
16 15 14 13 12 11 10
3. To temperature control actuator
Go to applicable DTC
diag. flow.
Go to Step 3.
Go to Step 7.
G51
2 1 10 9 8 7 6 5 4 3
9 20 19 18 17 16 15 14 13
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 Step 2.
Obstruction in operating
range of actuator
linkage, actuator linkage
faulty and/or internal
fault of HVAC unit.
Go to Step 4.
S7RS0B7224016
2 1
12 11
I5RS0A722014-01
No