Ford 2002 Bantam - DTC B1878 Driver Safety Belt Pretensioner Short to Battery

501-20B-34 Occupant Restraints — Passive — Supplemental Air 501-20B-34
Bag System
DIAGNOSIS AND TESTING (CONTINUED)
CONDITIONS
DETAILS/RESULTS/ACTIONS
O2: CHECK THE DRIVER SAFETY BELT PRETENSIONER FOR OPEN CIRCUIT OR HIGH
RESISTANCE
1. 2.
Air Bag Control
Module C335
3.
Driver Safety Belt
Pretensioner Simu-
lator
4 Measure the resistance between:
- the air bag control module C335 pin 11,
circuit 94S-JA33 (VT/BU) and the driver
safety belt pretensioner C348 pin 3, circuit
94S-JA33 (VT/BU) harness side; and
- the air bag control module C335 pin 12,
circuit 91S-JA33 (BK/BU) and the driver
safety belt pretensioner C348 pin 1, circuit
91S-JA33 (BK/BU) harness side.
• Are the resistances less than 5 ohms?
 Yes
REPEAT the self-test; CLEAR the DTCs.
REACTIVATE the system. REFER to Air
Bag and Safety Belt Pretensioner
Supplemental Restraint System (SRS) in
this section.
 No
INSTALL a new air bag wiring harness.
REPEAT the self-test; CLEAR the DTCs.
REACTIVATE the system. REFER to Air
Bag and Safety Belt Pretensioner Supple-
mental Restraint System (SRS) in this sec-
tion.
PINPOINT TEST P: DTC B1878 DRIVER SAFETY BELT PRETENSIONER SHORT TO BATTERY
CONDITIONS DETAILS/RESULTS/ACTIONS
WARNING: Wait at least one minute after disconnecting the battery ground cable before
disconnecting any supplemental restraint system electrical connector. Failure to follow this
instruction may result in personal injury.
P1: CHECK THE DRIVER SAFETY BELT PRETENSIONER CIRCUIT
1 Deactivate the supplemental restraint system.
REFER to Air Bag and Safety Belt Preten-
sioner Supplemental Restraint System (SRS)
in this section.
08/2001 2002 Bantam