Suzuki GRAND VITARA User Manual

Air Conditioning System: 7B-48
DTC B1531: Air Intake Control Actuator and/or Its Circuit Malfunction
S5JB0A7204041
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Connect scan tool to DLC with ignition switch turned OFF.
2) Turn ON ignition switch and clear DTC using scan tool.
3) Start A/C system and select air intake selector at “FRE” position.
4) Select air intake selector at “REC” position and wait for 1 min. or more.
5) Check DTC.
DTC Troubleshooting
12V
5V
M
5V
G52-22
G52-31
G52-32
G52-13
RED/WHT
G52-14
BLK/RED
GRN
WHT/GRN
ORN
[A]
2
3
4
1
1314
2232 31
I5JB0A720027-01
[A]: HVAC control module connector “G52” (harness side view) 3. To other actuators
1. HVAC control module 4. To other sensors
2. Air intake control actuator
DTC Detecting Condition Trouble Area
Difference between target opening and actual opening is more than specified
value even though air intake control actuator has operated for 15 seconds.
• Air intake control actuator circuit
• Air intake control linkage
• Air intake control actuator
• HVAC unit
• HVAC control module
Step Action Yes No
1 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?
Go to Step 2. Obstruction in operating
range of actuator
linkage, actuator linkage
faulty and/or internal
fault of HVAC unit.
2 Wire harness check
1) Disconnect connector from air intake control actuator
with ignition switch turned OFF.
2) Check for proper connection to temperature control
actuator connector at “ORN” and “GRN” wire terminals.
3) If OK, measure voltage between “ORN” wire terminal of
temperature control actuator connector and vehicle body
ground with ignition switch turned ON when air intake
selector is operation to FRE position.
Is voltage 10 – 14 V?
Go to Step 6. Go to Step 3.

Suzuki GRAND VITARA Specifications

General

Brand	Suzuki
Model	GRAND VITARA
Category	Automobile
Language	English