B1512-H

DTC B1511-H / B1512-H / B1515-H / B1530-H

DTC Detecting Condition and Trouble Area






Circuit Diagram










DTC Confirmation Procedure

1) Start engine and operate A/C system.

DTC Troubleshooting

NOTE:

- This flow shows "DTC B1511-H: Driver Side Temperature Control Actuator (Position Sensor) and/or Its Circuit Malfunction".
- Check "DTC B1512-H / B1515-H / B1530-H" in the same manner as "DTC B1511-H" referring to the following table.





1. Scan tool parameter check

Check "Air Mix Pos Sen (Driver)" using "Data list" mode on SUZUKI scan tool. Scan Tool Testing and Procedures

Is voltage over 4.8 V?
YES -
Go to Step 2.
NO -
Intermittent trouble.

2. Driver side temperature control actuator position sensor signal circuit check

Disconnect driver side temperature control actuator connector.
Connect "GRY/RED" and "BLK/RED" wire terminals of driver side temperature control actuator connector using service wire.
Check "Air Mix Pos Sen (Driver)" using "Data list" mode on SUZUKI scan tool. Scan Tool Testing and Procedures

Is voltage over 4.8 V?
YES -
Go to Step 3.
NO -
Replace driver side temperature control actuator. Temperature Control Actuator Removal and Installation

3. Driver side temperature control actuator position sensor signal circuit check

Connect "GRY/RED" and "BLK/RED" wire terminals of "G20" connector using service wire.
Check "Air Mix Pos Sen (Driver)" using "Data list" mode on SUZUKI scan tool. Scan Tool Testing and Procedures

Is voltage over 4.8 V?
YES -
Replace HVAC control module and recheck DTC. HVAC Control Module Removal and Installation
NO -
"GRY/RED" or "BLK/RED" wire open.