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PINPOINT TEST T : DTC B1878: DRIVER SAFETY BELT PRETENSIONER SHORT TO BATTERY DETAILS/RESULTS/ACTIONS TEST CONDITIONS T1: CHECK THE DRIVER SAFETY BELT PRETENSIONER CIRCUIT WARNING: To avoid accidental deployment, the RCM backup power supply must be depleted. 1 Deactivate the SRS. 2 Ignition switch in position II. 3 Carry out the self-test with the simulators installed. • Does the system prove out correctly? ൺ Yes GO to T2 . ൺ No GO to T3. T2: PROVE OUT THE DRIVER SAFETY BELT PRETENSIONER CIRCUIT 1 Ignition switch in position 0. 2 Disconnect Driver Side Underseat Occupant Restraint Systems Simulator. 3 Connect Driver Side Underseat Occupant Restraint Systems Electrical Connector C30. 4 Ignition switch in position II. 5 Carry out the self-test. • Does the system prove out correctly? ൺ Yes REPEAT the self-test, CLEAR the DTCs. ൺ No INSTALL a new driver safety belt buckle and REFER to: Safety Belt Buckle and Preten- sioner (501-20 Safety Belt System, Removal and Installation). REPEAT the self-test, CLEAR the DTCs. T3: CHECK THE DRIVER SAFETY BELT PRETENSIONER CIRCUIT FOR A SHORT TO BATTERY 1 Ignition switch in position 0. 2 Disconnect RCM C429. G401865en 501-20B- 48 Supplemental Restraint System 501-20B- 48 DIAGNOSIS AND TESTING |