Help!! Truck won’t start

[dctackett10]

Ok..  so I was uninstalling my rollbar on my 2019 custom trailboss because I had plan on trading it in this weekend to a LT trailboss. Got to the wire harness part and could not get the wire out from underneath the fuse box under the hood. So I ended up just cutting that wire. (It was the correct wire, wire for the roll bar harness).  Went to start my truck and now it won’t start, won’t even crank. Music, lights and everything comes on but it will not crank. 
 

it says to service battery charging system, service esc, service 4 wheel drive, traction control off. 
hooked my scan reader up to it and it’s showing 8 codes.

P062B. P0690. P16B3. P16BF. P062B pd. P0690 pd. P16B3 pd. P16BF pd.

 

I got a appointment Wednesday to get it towed and looked at by the dealer but does anybody know what the problem is?  I checked fuses and relays and none seem to be blown, unhooked the battery for about 20 mins and nothing, any ideas?? 

[Transient]

Did you check to make sure the negative cable for the starter was still connected to the negative terminal of the battery? It may have dropper under or next to the battery between the battery and firewall under the windshield if you messed with that terminal. It happened to me once, and I didn't realize it. Check to make sure it's still connected.

Sent from my SM-N960U using Tapatalk

[newdude]

What engine?

[dctackett10]

6 minutes ago, newdude said:

What engine?

5.3 

[newdude]

1 hour ago, dctackett10 said:

5.3 

 

I'm somewhat concerned here.  I think whoever installed the sport bar originally tied the bar into the wrong circuit and now you cutting the wire has interrupted the Powertrain Main Relay #1 power supply hence your no start.

 

You are gonna have to pull the UEC off and get down to the connectors.  The connector they should have tied into is X2 (top right) but it sounds like they tied into X3 (bottom left).

 

    

X50A Fuse Block - Underhood X3 (L82)

Connector Part Information Harness Type: Engine OEM Connector: 33384584 Service Connector: 19371176 Description: 44-Way F 1.5, 2.8, 6.3 CTS, 9.5 MCON-LL Series (GY)

Terminal Part Information

Terminal Type ID	Terminated Lead	Diagnostic Test Probe	Terminal Removal Tool	Service Terminal	Tray Name	Core Crimp	Insulation Crimp
I	13582286	J-35616-35 (VT)	J-38125-557	1241390-1	Lear 17	F	D
II	19332365	J-35616-14 (GN)	J-38125-560A	Not Available	Not Available	Not Available	Not Available
III	19332366	J-35616-35 (VT)	J-38125-212	Not Available	Not Available	Not Available	Not Available
IV	Not Required	J-35616-22 (RD)	No Tool Required	Not Available	Not Available	Not Available	Not Available

X50A Fuse Block - Underhood X3 (L82)

Pin	Size	Color	Circuit	Function	Terminal Type ID	Option
A1	0.5	VT/GN	439	Run/Crank Ignition 1 Voltage 4	III	—
A2	0.5 0.5	WH/GY VT/BK	2139 2139	Run/Crank Ignition 1 Voltage 21 Run/Crank Ignition 1 Voltage 21	III	— —
A3	—	—	—	Not Occupied	—	—
A4	0.5	BN/GN	59	A/C Compressor Clutch Control	III	—
A5 - A6	—	—	—	Not Occupied	—	—
B1	2.5	YE	6	Starter Solenoid Actuator Crank Ignition Voltage	I	—
B2	0.5	YE/BK	625	Starter Enable Relay Control	III	—
B3 - B5	—	—	—	Not Occupied	—	—
B6	2.5	RD/GY	1342	Primary Fused Battery Positive Voltage 13	I	—
C1 - C2	—	—	—	Not Occupied	—	—
C3	1	BK	4450	Ground 44	II	—
C4	0.5	WH/GY	459	A/C Compressor Clutch Relay Control	II	—
C5	0.5	VT/YE	3854	Cabin Heater Coolant Pump Motor Control	II	—
C6	0.5	VT/BU	5290	Powertrain Main Relay Fused Supply 1	II	—
C7	0.5	VT/BU	5290	Powertrain Main Relay Fused Supply 1	II	—
C8 - D1	—	—	—	Not Occupied	—	—
D2	10	RD/WH	342	Primary Fused Battery Positive Voltage 3	IV	—
E1	—	—	—	Not Occupied	—	—
E2	10	RD/GY	642	Primary Fused Battery Positive Voltage 6	IV	—
F1	—	—	—	Not Occupied	—	—
F2	0.5	YE/VT	4325	Starter Pinion Solenoid Actuator Relay Control	II	—
F3	0.5	RD/BN	440	Secondary Fused Battery Positive Voltage 4	II	—
F4	0.5	YE	5991	Powertrain Relay Coil Control	II	—
F5 - F6	—	—	—	Not Occupied	—	—
F7	0.5	VT/BU	5705	Powertrain Main Relay Fused Supply 6	II	—
F8 - G1	—	—	—	Not Occupied	—	—
G2	0.75	VT/BU	5292	Powertrain Main Relay Fused Supply 3	III	—
G3	—	—	—	Not Occupied	—	—
G4	0.5	VT/BU	5293	Powertrain Main Relay Fused Supply 4	III	—
G5	1	VT/BU	5291	Powertrain Main Relay Fused Supply 2	III	—
G6	0.75	VT/BU	5291	Powertrain Main Relay Fused Supply 2	III	—
H1	2	VT/BU	5290	Powertrain Main Relay Fused Supply 1	I	—
H2	1	VT/BU	5292	Powertrain Main Relay Fused Supply 3	III	—
H3	0.5	VT/BU	5294	Powertrain Main Relay Fused Supply 5	III	—
H4 - H5	—	—	—	Not Occupied	—	—
H6	0.5	VT/BU	5290	Powertrain Main Relay Fused Supply 1	III	—

Edited April 16, 2021 by newdude

[newdude]

 

Quote

 

UEC (Underhood Electrical Center)

1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Vehicle Service Manual.
   
2. Disengage the retaining tabs and remove the UEC cover (1) from the top of the UEC.
   
3. Remove the nut (3) and terminal ring (4) from the UEC terminal post (1).
4. Loosen the four bolts (2) on the top of UEC.
   
5. Disengage the retaining tabs (1), pull up and remove the UEC (2) from its base.
   
6. Remove the fasteners (4) from the UEC base (5).
7. Disengage retaining tab (3) from side bracket (2).
8. Lift up and remove UEC base from brackets (1), (2).
   
9. Locate body 2 connector (2) in the UEC and remove body 2 connector (2) from clip to access the wire side of connector. Refer to Delphi Connectors in Vehicle Service Manual.

   Note: If terminal is not present in cavity H1, insert the CHMSL wire terminal on the sport bar harness into cavity H1 and proceed to step 13.

10. Locate Cavity H1 (1) on the Body 2 connector (2) in the UEC and remove the terminal from Cavity H1, if present, DO NOT CUT OFF terminal. Remove Terminal per service guidelines. Refer to Delphi Connectors in Vehicle Service Manual.
11. Use slit in convolute to insert terminated CHMSL wire from underbody harness into Cavity H1 in place of the removed circuit.
12. Cover the terminal that was removed and the un-needed terminal from the accessory harness with vinyl tape and store them out of the way. Proceed to step 14

    Note: Do not cut off the terminal that was removed, the vehicle owner may want to return to the original CHMSL.

 

1.  

   

[newdude]

1 hour ago, dctackett10 said:

 

 

 

So after you've digested the info above...

 

HOPEFULLY who ever installed it left the terminal for that in there taped up on the end of a piece of wire.  

 

If not, you will have to splice the end of the sport bar wire with the terminal that you left in there into the wire that should be taped up near by.  It sounds like it was tied into slot H1 on X3 so in the picture of the electrical main connectors, the bottom left.  It SHOULD have been put into H1 in the top right plug which is X2 connector.  

 

The slot H1 ignition relay supply #1 power wire per the connector chart above is a VIOLET WIRE with a BLUE STRIPE.  

Edited April 16, 2021 by newdude

[newdude]

DTC P0690

Engine Controls Ignition Relay Feedback Circuit High Voltage

 

DTC P1682

Ignition 1 Switch Circuit 2

 

DTC P16A7

Engine Controls Ignition Relay Feedback Circuit 2

 

DTC P16AF

Engine Controls Ignition Relay Feedback Circuit 2 Low Voltage

 

DTC P16B3

Engine Controls Ignition Relay Feedback Circuit 2 High Voltage

 

DTC P16BC

Engine Controls Ignition Relay Feedback Circuit 3

 

DTC P16BD

Engine Controls Ignition Relay Feedback Circuit 3 Low Voltage

 

DTC P16BF

Engine Controls Ignition Relay Feedback Circuit 3 High Voltage

[dctackett10]

It was the dealership that installed it. Thank you for the info. I’ll look into that!