DTC 56-Bx

DTC 51-2x, 51-4x, 52-8x, 52-9x, 52-Ax, 52-Bx, 52-Cx, 52-Dx, 52-Ex, 52-Fx, 53-1 x, 53-2x, 53-3x, 53-4x, 54-1 x, 54-2x, 54-3x, 54-4x, 54-5x, 54-6x, 54-7x, 55-1x, 55-2x, 55-3x, 55-4x, 56-8x, 56-9x, 56-Ax, 56-Bx, 56-Cx, 56-Dx, 56-Ex, 56-Fx ("x" can be 0 thru 9 or A thru F) Internal Failure of the SRS Unit

NOTE: Before troubleshooting any of these DTCs, check the battery/system voltage. If the voltage is low, repair the charging system or replace the battery before troubleshooting the SRS. If the battery/system voltage is now OK, ask the customer if the battery ever went dead. A dead battery may trigger one of these DTCs.

1. Erase the DTC memory.
2. Turn the ignition switch ON (II), and check that the SRS indicator comes on for about 6 seconds and then goes off.

Does the SRS indicator stay on, and is DTC 51-2x, 51-4)1, 52-8x, 52-9x, 52-Ax, 52-Bx, 52-Cx, 52-Dx, 52-EX, 52-Fx, 53-1X, 53-2x, 53-3x, 53-4x, 54-1 x, 54-2X, 54-3X, 54-4x, 54-5x, 54-6x, 54-7x, 55-1x, 55-2x, 55-3x, 55-4x, 56-8x, 56-9x, 56-Ax, 56-Bx, 56-Cx, 56-Dx, 56-Ex, or 56-Fx indicated?

YES - Replace the SRS unit.

NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. Troubleshooting Intermittent Failures If another DTC is indicated, go to the DTC Troubleshooting Index. DTC List - Supplemental Restraint System