Code B1413:96

[seasprite]

I like to scan the truck now and then checking for codes and came across this as a history code twice now. Once HERE back at my 50k oil change and now the other day

Found the sensor at Rock Auto for around $40.00
Before I fire the parts cannon at this, I would like to check for the green crusties and look for possible rodent damage.
So any of you guy's know the location of the front crash sensor? (I.m guessing around the hood latch)
Any service procedures I should be aware of other than the battery being disconnected ?

Sponsored

 

[RangerBill]

I like to scan the truck now and then checking for codes and came across this as a history code twice now. Once HERE back at my 50k oil change and now the other day


Found the sensor at Rock Auto for around $40.00
Before I fire the parts cannon at this, I would like to check for the green crusties and look for possible rodent damage.
So any of you guy's know the location of the front crash sensor? (I.m guessing around the hood latch)
Any service procedures I should be aware of other than the battery being disconnected ?

There are two of them.

 

[RangerBill]

They are located underneath the front end.

 

[airline tech]

The code is specific to the Drivers Front Impact Severity Sensor - the (-96) relates to internal sensor failure, but could be a bad connector (dirty) at the sensor and or its mating surface (the mating surface) acts as noise suppression for the internal sensor.

So, most likely a bad sensor, but check the connector for security and corrosion, the next inline connector is C1147 - however due to its location it's hard to access with the dash installed from that connector it feeds the RCM (located) under the center console.

The manuals give options for Depowering the SRS, and it depends on if the ABS Light is actively (ON) - If (ON) you pull fuse (BCM) 14 & 19 - BECMB - VBATT and VPWR - then disconnect the battery
Reason - if the light is on the RCM is powered

If the ABS light is (Off) then wait (1-Minute) after shutdown and remove the sensor.
Reason - If the ABS light is (off) then the RCM will depower after 1-Minute

Most likely - it's the sensor or its connector is dirty as these are both (outside) of the cab


C1147 - Location
With the dash installed - access is limited

 

[seasprite]

There are two of them.

Thanks RangerBill
I like how your diagrams show the workings of the sensor. shock switch with a resistor? for a circuit check I'm guessing.

 

[seasprite]

The code is specific to the Drivers Front Impact Severity Sensor - the (-96) relates to internal sensor failure, but could be a bad connector (dirty) at the sensor and or its mating surface (the mating surface) acts as noise suppression for the internal sensor.

So, most likely a bad sensor, but check the connector for security and corrosion, the next inline connector is C1147 - however due to its location it's hard to access with the dash installed from that connector it feeds the RCM (located) under the center console.

The manuals give options for Depowering the SRS, and it depends on if the ABS Light is actively (ON) - If (ON) you pull fuse (BCM) 14 & 19 - BECMB - VBATT and VPWR - then disconnect the battery
Reason - if the light is on the RCM is powered

If the ABS light is (Off) then wait (1-Minute) after shutdown and remove the sensor.
Reason - If the ABS light is (off) then the RCM will depower after 1-Minute

Most likely - it's the sensor or its connector is dirty as these are both (outside) of the cab


C1147 - Location
With the dash installed - access is limited

I have no AB light on. The only time I ever see it is when I start the truck and it does its bulb check. Like you I believe the sensor is at fault.

That is good news that I don't have to unhook the Batt. I'll use an inductive amp meter to let me know when the truck goes to sleep.
Thanks airline tech

 

[RangerBill]

I have no AB light on. The only time I ever see it is when I start the truck and it does its bulb check. Like you I believe the sensor is at fault.

That is good news that I don't have to unhook the Batt. I'll use an inductive amp meter to let me know when the truck goes to sleep.
Thanks airline tech

I would disconnect the battery to be safe while replacing the sensor.

 

[seasprite]

I would disconnect the battery to be safe while replacing the sensor.

Just got back in from checking the sensor for corrosion and damage and it was fine. So I'm going to order a new one tonight.
Ended up just letting the truck go to sleep and nothing bad happened. I understand your concern. Debated with myself and well you can see who won.
Still awake

Asleep

When I removed the bottom Skid plate and the bottom air diverter, I ended up with a nice surprise in my face.

How in the hell did all this crap end up between my condenser and radiator. I mean it seems like they had that area sealed pretty well. After that I decided to pull the top radiator cover and take look.

I cleaned as much as could with compressed air. I blew across the radiator and not directly at it. Didn't want to push the crap in to the fins

The impact sensor plug was fine and no visible damage to the sensor itself. Followed the harness as far as could and saw no damage.

Going to be doing my 55k oil change next weekend and I'll replace it then.
Again thanks for the help guy's

 

[seasprite]

Changed out the sensor today since I was changing my oil.

I decided to measure the resistance between the old and new sensor to see if there was a difference.
New 4.90 M ohms
Old 4.58 M ohms
Don't know how low of resistance the computer is looking for before it sets a code, but there is a little difference between the two.

Here is the part # if anyone else needs it

 

[RangerBill]

Changed out the sensor today since I was changing my oil.

I decided to measure the resistance between the old and new sensor to see if there was a difference.
New 4.90 M ohms
Old 4.58 M ohms
Don't know how low of resistance the computer is looking for before it sets a code, but there is a little difference between the two.

Did your DTCs clear?

 

[seasprite]

Did your DTCs clear?

Its gone
the board is green

 

[airline tech]

This is not a resistance-based sensor, it's a Powered Electronic Module which contains a micro controller and an accelerometer, and all this sensor reports (for crash monitoring) is rapid deceleration to the RCM and this sensor alone will not deploy the airbags, and it's used as a cross-check of data.
The (-96) of the code - defines internal sensor failure, and it has failed its power up monitoring self-test - however a bad connection could cause false reporting, so if the code shows up again in historical then it's in the wiring or one of the other connectors (C1147) or the RCM connector.

The system has 4 crash sensors (accelerometers), and the RCM has its own internal accelerometer now the rest of the sensors of the system for Airbag and anything that affects actual squib firing are all resistance-based monitoring.

Sponsored