No
Fault corrected. GO to L14 .
L12 CONFIRM THE RCM FAULT
NOTE: Make sure all restraint system diagnostic tools, sensor electrical connectors, and the RCM electrical connector are connected before carrying out the on-demand self test. If not, erroneous DTCs will be recorded.
Key in OFF position.
Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering in this section.
Install the original front impact severity sensor.
Repower the system. Do not prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering in this section.
Enter the following diagnostic mode on the diagnostic tool: On-Demand Self Test.
Enter the following diagnostic mode on the diagnostic tool: Flag DTC B2296/Record All Flagged Faults.
Was DTC B2296 retrieved during the on-demand self test?
Yes
If a "?" was flagged by the scan tool, CARRY OUT the entire pinpoint test.

INSTALL a new RCM. GO to L14 .

No
CHECK for causes of the intermittent fault. ATTEMPT to recreate the hard fault by flexing the wire harness and cycling the ignition key frequently. ACTIVATE other systems in the same wire harness. REPAIR any intermittent concerns found.
L13 CHECK FOR AN INTERMITTENT FAULT
Key in OFF position.
Enter the following diagnostic mode on the diagnostic tool: On-Demand Self Test.
Enter the following diagnostic mode on the diagnostic tool: Flag DTC B2296/Record All Flagged Faults.
Was DTC B2296 retrieved during the on-demand self test?
Yes
This is a hard fault. The fault condition is now present. The fault cannot be cleared until it is corrected and the DTC is no longer retrieved during the on-demand self test.

If a flagged fault of "?" was recorded, multiple faults exist and the entire pinpoint test must be carried out.

For front impact severity sensor (FNT_SEN) with a mounting/communications (COMM) fault, GO to L2 .

For front impact severity sensor (FNT_SEN) with an internal fault (INT) fault, INSTALL a new front impact severity sensor. REFER to Front Impact Severity Sensor in this section. GO to L14 .

No
VISUALLY INSPECT the affected impact sensor, mounting brackets and mounting surface for damage, corrosion or dirt. INSPECT the wiring, terminals and connectors for damage, corrosion or dirt. CHECK for causes of the intermittent fault. ATTEMPT to recreate the hard fault by flexing the wire harness and cycling the ignition key frequently. ACTIVATE other systems in the same wire harness. REPAIR any intermittent concerns found. GO to L14 .
L14 CHECK FOR ADDITIONAL DTCs
Refer to the continuous DTCs recorded during Step L1.
Were any continuous DTCs retrieved during Step L1?
Yes
Do not clear any DTCs until all DTCs have been resolved. GO to the Restraints Control Module (RCM) Diagnostic Trouble Code (DTC) Table in this section for pinpoint test direction.

No
RECONNECT the system. If previously directed to deactivate the system, REACTIVATE the system. REFER to Supplemental Restraint System (SRS) Deactivation and Reactivation in this section. REPOWER the system. REFER to Supplemental Restraint System (SRS) Depowering and Repowering in this section. PROVE OUT the system. CLEAR all DTCs.

 

Air bag code 42.

Restraint System — Impact Sensor Fault (Front Impact Severity Sensor Circuit Fault)

 

Thanks, Irish FX4, lots of info to decifier. I ran through the check and cleaning process of the sensor, but it didn't help. The light has gone off on 2 different trips, but it's still there. If your truck is under 50,000 miles it's still under the air bag warranty. I called Ford about the part and they said it was $164.34, it's not the original, but a new revamped sensor. No returns if used not sure if this wil fix the 42 code. I'll keep trying. Thanks again for your effort.
Booker

 

Hey Booker,

Go here! $30 bucks.
http://www.directfordparts.com/partl...04&catalogid=1

My dealer here in Canada wants $60 bucks but i have yet to check the sensor. I may buy from the link above if the shipping is resonable.

 

I checked out the web-site above and S&H is $10.95, I called another dealer and they said there are 2 different parts. The sensor in front of the radiator is $43 and the module in the dash is $215.30. I'll keep calling around, might be worth $40.00 to replace the sensor in the front of the radiator???!!!

 

The code 42 your getting is for the sensor on the rad. Its the front impact sensor. Replace it or check it like the above check tells you. My bets its the sensor on the rad. Im checking mine tomorrow when i get home from work.

Good luck.

 

Hey Booker,

I fixed mine today. When i unplugged the sensor, one of the two pins inside the sensor came out in the plug connector. Bingo!! Saved me alot of checking and testing. I bet yours is the same. Replace the front impact sensor. It looked like the pin corroded away.

Good luck!

 

Happy St. Patty's day Irish,
Good job on fixing that dang code. Was wondering where you bought your sensor from and how much you paid?? Did you order from that web-site??? I'm going to fix it this week...Thanks,
Booker

 

Hey Happy paddy's day to you also Booker,

I pick up my front impact sensor at my local stealer ship. $68 bucks with tax!Wanted to get it done and not wait on the sensor to arrive.

 

Well I also finally did it. I replace that front impact sensor and the 42 air bag code is gone. Thanks for all your help. Till next time....