SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 324 (CHARGING SYSTEM)DIAGNOSTIC TESTSDTC B1513 OR DTC B1514: CHARGING SYSTEM VOLTSCONDITIONS FOR SETTING DTC
1999 GMC Forward Control 5.7 R, Automatic

Conditions For Setting DTC

1999 GMC Forward Control 5.7 R, AutomaticSECTION Conditions For Setting DTC
WARNING: This page is about a different car, the 2003 Oldsmobile Aurora and 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

This DTC B1513 will be set as current when the voltage falls below 10.5 volts for 30 seconds and the engine is running.

This DTC B1514 will be set as current when the voltage is greater than 16.2 volts for 30 seconds with the engine running.

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.