Ford F150 Pickup. Instruction - part 1734

intermittent fault or if not directed to this step from step 2 , go to next step. 

4. Check for additional DTCs 

 
Refer to continuous DTCs recorded in step 1 . If any continuous DTCs were retrieved, go to diagnostic 
trouble code identification table for direction to appropriate test. See DIAGNOSTIC TROUBLE CODE 
(DTC) IDENTIFICATION table. If no continuous DTCs were retrieved, reactivate air bag system. See 
ACTIVATING SYSTEM under DISABLING & ACTIVATING AIR BAG SYSTEM. Clear all DTCs. 
See CLEARING FAULT CODES under DIAGNOSTICS.  

TEST Y: NO COMMUNICATION WITH RCM 

1. Check RCM connector & pin No. 5 for damage 

 
Turn ignition switch to OFF position. Disable air bag system. See DISABLING SYSTEM under 
DISABLING & ACTIVATING AIR BAG SYSTEM. Access RCM and disconnect harness connector. 
See RESTRAINTS CONTROL MODULE (RCM) under REMOVAL & INSTALLATION. Inspect 
component side and harness side of RCM connector, terminal No. 5 for damage. See Fig. 14 & Fig. 17 . 
If module pin and module harness connector terminal No. 5 are okay, go to next step. If module pin and 
module harness connector terminal No. 5 are damaged, repair/replace as necessary. Reactivate air bag 
system. See ACTIVATING SYSTEM under DISABLING & ACTIVATING AIR BAG SYSTEM. 

2. Check DLC for damage 

 
Inspect Data Link Connector (DLC) and DLC connector terminal No. 7 for damage. See Fig. 19 . DLC is 
located under steering column. If DLC connector and DLC connector terminal No. 7 is okay, go to next 
step. If DLC connector and DLC connector terminal No. 7 is damaged, repair/replace as necessary. 
Reactivate air bag system. See ACTIVATING SYSTEM under DISABLING & ACTIVATING AIR 
BAG SYSTEM. 

3. Check circuit for open 

 
Measure resistance of Light Blue/White wire (circuit No. 70) between harness side of RCM connector 
terminal No. 5 and DLC connector terminal No. 7. See Fig. 14 & Fig. 19 . If resistance is less than 5 
ohms, replace RCM. Reconnect air bag system. Activate air bag system. See ACTIVATING SYSTEM 
under DISABLING & ACTIVATING AIR BAG SYSTEM. Clear all DTCs. See CLEARING FAULT 
CODES under DIAGNOSTICS. If resistance is more than 5 ohms, repair open in Light Blue/White wire. 
See WIRING DIAGRAMS . Reconnect air bag system. Activate air bag system. Clear all DTCs. 

 

2003 Ford Pickup F150 

2003 ACCESSORIES/SAFETY EQUIPMENT Air Bag Restraint Systems - F150 Pickup

  

Fig. 19: Identifying Data Link Connector (DLC) 
Courtesy of FORD MOTOR CO. 

WIRE REPAIR 

To repair damage to sensor wiring and wiring harnesses, note following conditions and go to REPAIR 
PROCEDURE . 

z

All wire splice connections must be staggered at least 2" (50 mm) apart.  

z

Use proper size, waterproof butt-splice connectors on any exposed wiring.  

z

Use heat shrink nylon splice to prevent water, salt, condensation and heat from affecting the wiring 
repair.  

REPAIR PROCEDURE 

Insert pre-stripped wire ends into proper size waterproof butt-splice connector, and crimp connector using 
appropriate crimping pliers. See Fig. 20 . Using heat gun, hair dryer or match, heat splice until it shrinks and 
adhesive oozes from each end of tubing. Connection is now waterproofed.

 

2003 Ford Pickup F150 

2003 ACCESSORIES/SAFETY EQUIPMENT Air Bag Restraint Systems - F150 Pickup

  

Fig. 20: Repairing & Waterproofing Wiring Connections 
Courtesy of FORD MOTOR CO. 

TORQUE SPECIFICATIONS 

TORQUE SPECIFICATIONS 

Application

Ft. Lbs. (N.m)

Front seat (with seat integrated restraints)

anchor bolts

35 (47)

fifth foot anchor bolt

35 (47)

Front seat (without seat integrated restraints)

anchor nuts

37 (50)

anchor bolts

37 (50)

 

2003 Ford Pickup F150 

2003 ACCESSORIES/SAFETY EQUIPMENT Air Bag Restraint Systems - F150 Pickup

  

WIRING DIAGRAMS 

Seat belt

buckle/pretensioner nut

30 (40)

guide nut

30 (40)

lower anchor bolt

30 (40)

retractor/pretensioner bolt

30 (40)

Steering wheel bolt

28 (38)

INCH Lbs. (N.m)

Bulkhead connector screws

35-50 (4.0-5.6)

Driver-side air bag module screws

89 (10)

Instrument cluster bolts

18-27 (2.0-3.0)

Instrument cluster finish panel bolts

18-27 (2.0-3.0)

Instrument panel fuse junction panel bolts & nuts

35-50 (4.0-5.6)

Lower steering column shroud screws

7-10 (0.7-1.1)

Passenger-side air bag module screws

80 (9)

RCM bracket bolts

106 (12)

Tilt wheel handle & shank

27-44 (3.0-5.0)

 

2003 Ford Pickup F150 

2003 ACCESSORIES/SAFETY EQUIPMENT Air Bag Restraint Systems - F150 Pickup