B1504-H

DTC B1504-H / B1505-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 B1504-H: Driver Side Sunload Sensor and/or Its Circuit Malfunction".
- Check "DTC B1505-H" in the same manner as "DTC B1504-H" referring to the following table.





1. Scan tool parameter check

Check "Sun Load (Driver)" using "Data list" mode on SUZUKI scan tool. Scan Tool Testing and Procedures

Is it over 2440 W/m2?
YES -
Go to Step 2.
NO -
Intermittent trouble.

2. Sunload sensor signal circuit check

Disconnect sunload sensor connector.
Check "Sun Load (Driver)" using "Data list" mode on SUZUKI scan tool. Scan Tool Testing and Procedures

Is it over 2440 W/m2?
YES -
Go to Step 3.
NO -
Replace sunload sensor. Sunload Sensor Removal and Installation

3. Sunload sensor signal circuit check

Disconnect "G20" connector.
Check that voltage between "PNK" wire terminal and ground is 0 - 1 V with ignition mode of keyless push start system in "ON".

Is it in good condition?
YES -
Replace HVAC control module and recheck DTC. HVAC Control Module Removal and Installation
NO -
Repair or replace defective wire harness.