What Does B1526 Mean?
This code indicates the Body Control Module (BCM) has detected a fault in the Driver Information Center (DIC) switch circuit. The DIC switch allows the driver to navigate menus and control functions displayed on the instrument cluster or information display. The BCM has detected an open circuit, short to ground, short to voltage, or excessive resistance in the switch wiring or the switch itself has failed.
Common Causes
45%
Faulty DIC switch with internal contact wear or failure
30%
Damaged or corroded wiring harness between BCM and DIC switch
15%
Corroded or loose connector at DIC switch or BCM
10%
Body Control Module internal fault or programming issue
Diagnostic Steps
1
Step 1: Perform a visual inspection of the DIC switch on the steering wheel or dashboard, checking for physical damage, stuck buttons, or contamination. Test switch operation manually while monitoring live data for signal changes.
2
Step 2: Using a multimeter, check for power and ground at the DIC switch connector with ignition on. Verify voltage supply (typically 5V or 12V reference) and ground continuity meet manufacturer specifications.
3
Step 3: Disconnect the DIC switch and measure resistance values across switch terminals while actuating each button. Compare readings to service manual specifications to identify open or shorted contacts.
4
Step 4: Inspect wiring harness from DIC switch to BCM for pinched, chafed, or broken wires. Pay special attention to areas where harness passes through steering column or flexes during wheel movement. Check continuity on each circuit.
5
Step 5: Inspect connectors at both DIC switch and BCM for corrosion, bent pins, or moisture intrusion. Clean contacts with electrical contact cleaner and dielectric grease if corrosion is present.
6
Step 6: If all circuits and components test good, verify BCM programming is current and perform BCM relearn procedure. If fault persists after relearn, suspect BCM internal fault and consider replacement.
Estimated Repair Cost
$100 - $450
Parts + labor, varies by vehicle and location
This code indicates the Body Control Module (BCM) has detected a fault in the Driver Information Center (DIC) switch circuit. The DIC switch allows the driver to navigate menus and control functions displayed on the instrument cluster or information display. The BCM has detected an open circuit, sho...
The most common cause of B1526 (Driver Information Center (DIC) Switch Circuit) is: Faulty DIC switch with internal contact wear or failure
Typical repair costs for B1526 range from $100 to $450, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Safe to continue driving as this code only affects the Driver Information Center display controls and menu navigation. The vehicle operates normally, but the driver may lose ability to view trip information, customize settings, or acknowledge certain warning messages until repaired.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to B1526 to identify the root cause.
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Quick Info
Category
Body
System
Body Control and Driver Information System
Difficulty
Type
Manufacturer
Recommended Tools
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