Jhen

Hey guys, need some help. Driving along and Jeep dies. Showing codes for:

P0627 Fuel pump control circuit open
P0571 Brake switch performance
V1120 lost wheel distance msg
V0121 lost comm with anti lock brake module
V1110 lost vehichle speed msg
P0585 speed control switch 1/2 conection
P0513 invalid sim key
V0121 again

all at the same time. Starter will turn but wont fire.

gunbo75

What year Jk?

Jhen

it's a 2007.

airforce26yrs

With all the different codes maybe a TPIM problem?

ridgerunner17

Fuel pump or fuel pump relay

Jhen

Thanks guys, turned out to be fuse M37. Now just need to figure out why thats blowing

OH9JK

M37
10 Amp Red
Anti-Lock Brake System (ABS) , Electronic Stability Program (ESP), Stop Lamp Switch (STP LP SW), Fuel Pump Rly Hi Control

Jhen

Thanks. Still trying to find out why it's poping the fuse. May need to go visit the stealership

OH9JK

Have you made any recent modifications or recent trips where excessive water or mud was involved? I would start with a visual inspection of wiring harness and connectors.

The stop lamp switch is a $20 part. If you rule that out a trip to the dealer might be required in order for them to diagnose. The other systems on that circuit are not exactly shade tree mechanic stuff.

FYI....the fuel pump relay is located within the TIPM and is not serviceable.

Jhen

Thanks OH9Jk, no new mods or trips with water or mud. Runs when stationary, only does it when moving. pumped the brakes repeatedly with no issue. since it runs and doesn't blow the fuse when i use the brakes, i've got it down to the (abs) and (esp).