B1513

DTC B1513: Temperature Control Actuator (Motor) and/or Its Circuit Malfunction

Wiring Diagram










DTC Detecting Condition and Trouble Area






DTC Troubleshooting

1.
Was "Air Conditioning System Check" performed?
YES -
Go to Step 2.
NO -
Go to Air Conditioning System Check Air Conditioning System Check:Auto A/C.

2. DTC check

Connect scan tool to DLC with ignition switch turned OFF.
Turn ignition switch to ON position and check DTC.

Is DTC B1511 detected together?
YES -
Go to B1511 DTC B1511: Temperature Control Actuator (Position Sensor) and/or Its Circuit Malfunction:Auto A/C.
NO -
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?
YES -
Go to Step 4.
NO -
Obstruction in operating range of actuator linkage, actuator linkage faulty and/or internal fault of HVAC unit.

4. Wire harness check

Turn ignition switch to OFF position.
Disconnect connectors from temperature control actuator and HVAC control module.
Check for proper connection to actuator motor drive circuit terminals of temperature control actuator and HVAC control module connectors.
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 ohms
- 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?
YES -
Go to Step 5.
NO -
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 B1511 DTC B1511: Temperature Control Actuator (Position Sensor) and/or Its Circuit Malfunction:Auto A/C.

Is it in good condition?
YES -
Go to Step 6.
NO -
Repair or replace.

6. Temperature control actuator check

Check temperature control actuator for performance referring to Circuit Inspection Temperature Control Actuator and Its Circuit Inspection:Auto A/C.

Is it in good condition?
YES -
Substitute a known-good HVAC control module and recheck.
NO -
Replace temperature control actuator.