What Does B1512 Mean?
B1512 indicates the Body Control Module (BCM) has detected a malfunction in the Driver Information Center (DIC) switch circuit. This code means there is an open circuit, short to ground, short to voltage, or excessive resistance in the wiring or switch assembly that controls the DIC buttons used to navigate menus and displays on the instrument cluster. The BCM monitors voltage and continuity in this circuit and sets this code when readings fall outside normal parameters.
Common Causes
45%
Faulty DIC switch assembly or worn/damaged switch contacts
30%
Damaged or corroded wiring harness between DIC switch and BCM
15%
Poor ground connection or corroded ground point in DIC circuit
10%
Failed Body Control Module (BCM) with internal circuit fault
Diagnostic Steps
1
Step 1: Perform visual inspection of DIC switch assembly on steering wheel or dashboard for physical damage, wear, or liquid intrusion. Check for stuck or non-responsive buttons.
2
Step 2: Using a digital multimeter, test continuity and resistance across DIC switch terminals while pressing each button. Compare readings to manufacturer specifications (typically 100-2000 ohms per button, infinite resistance when not pressed).
3
Step 3: Disconnect DIC switch connector and inspect pins for corrosion, bent terminals, or moisture. Test voltage supply wire from BCM (typically 5V reference) and verify ground circuit has less than 0.5 ohms resistance to chassis ground.
4
Step 4: Backprobe the BCM connector pins associated with DIC circuit while monitoring live data for switch inputs. Press each DIC button and verify BCM recognizes each input change.
5
Step 5: If all wiring and switch test within specifications but code persists, perform BCM voltage supply and ground tests. Check for 12V on BCM power feeds and verify all BCM grounds are secure with less than 0.5 ohms resistance.
6
Step 6: Clear code, perform functional test of all DIC buttons, and road test vehicle. Monitor for code return using live data streaming to confirm repair.
Estimated Repair Cost
$75 - $450
Parts + labor, varies by vehicle and location
B1512 indicates the Body Control Module (BCM) has detected a malfunction in the Driver Information Center (DIC) switch circuit. This code means there is an open circuit, short to ground, short to voltage, or excessive resistance in the wiring or switch assembly that controls the DIC buttons used to ...
The most common cause of B1512 (Driver Information Center (DIC) Switch Circuit) is: Faulty DIC switch assembly or worn/damaged switch contacts
Typical repair costs for B1512 range from $75 to $450, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Safe to continue driving as this does not affect vehicle operation or safety systems. This only impacts the ability to navigate DIC menus and view trip information, odometer settings, or other convenience features. Repair at convenience.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to B1512 to identify the root cause.
OBDHut Mobile App
Scan codes directly from your car with the OBDHut app.
Coming Soon
Quick Info
Category
Body
System
Body Control and Driver Information System
Difficulty
Type
Manufacturer
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
