LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Suzuki >> 2012 >> SX4 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 75 (Air Conditioning System - Auto A/C) >> Diagnostic Information and Procedures >> DTC B1513: Temperature Control Actuator (Motor) and/or Its Circuit Malfunction >> DTC Troubleshooting
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Troubleshooting

WARNING: This page is about a different car, the 2011 Suzuki SX4. However, it is still accessible from the selected car via links, so may be relevant.
B1513: SYMPTOM TROUBLESHOOTING REFERENCE CHART

Step Action YES NO
1  Was "Air Conditioning System Check" performed?  Go to Step 2. Go to AIR CONDITIONING SYSTEM CHECK: AUTO A/C .
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 B1511 detected together? 		 Go to DTC B1511: TEMPERATURE CONTROL ACTUATOR (POSITION SENSOR) AND/OR ITS CIRCUIT MALFUNCTION: AUTO A/C . Go to Step 3.
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? 		 Go to Step 4. Obstruction in operating range of actuator linkage, actuator linkage faulty and/or internal fault of HVAC unit.
4  Wire harness check 
  1. Turn ignition switch to OFF position.
  2. Disconnect connectors from temperature control actuator and HVAC control module.
  3. Check for proper connection to actuator motor drive circuit terminals of temperature control actuator and HVAC control module connectors.
  4. If OK, check that actuator motor drive circuit of temperature 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 temperature 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? 		 Go to Step 5. Actuator motor drive circuit(s) is open, short or high resistance.
5  Wire harness check 
Check position sensor circuit of temperature control actuator for condition referring to Step 2 of DTC B1511: TEMPERATURE CONTROL ACTUATOR (POSITION SENSOR) AND/OR ITS CIRCUIT MALFUNCTION : Auto A/C.
Is it in good condition? 		 Go to Step 6. Repair or replace.
6  Temperature control actuator check 
  1. Check temperature control actuator for performance referring to TEMPERATURE CONTROL ACTUATOR AND ITS CIRCUIT INSPECTION: AUTO A/C .

Is it in good condition? 		 Substitute a known-good HVAC control module and recheck. Replace temperature control actuator.
scientia non olet · About LEMON Manuals