What is a locked transfer case?
What is a locked transfer case?
Such a transfer case is permanently “locked” into all-wheel-drive mode. Transfer cases that are designed to allow for normal road use synchronize the difference between the rotation of the front and rear wheels, in much the same way the differential acts on a given axle.
Where are the fuses for the 4×4 transfer case?
There are (2) fuses that control the 4WD. One in the passenger compartment, and (1) under the hood. Check the # 5 (4×4 control module) 15 amp fuse in the passenger compartment. Also check the #13 (4×4 Motor) 20 amp fuse under the hood.
What happens when I shift the transfer case to 4Lo?
As long as the truck isn’t moving, the transfer case will shift in to 4Lo. There is generally a brief moment before the transfer case shifts. When you shift the transfer case, you should be able to hear a clicking sound coming from the transfer case control module.
Why does my 4×4 transfer case not work?
(FYI, once the 4WD was fixed, and reconnected the old shifter motor, and it didn’t work.) The 4WD system will not allow the transfer case to shift in to 4Lo unless it sees 0 MPH. I noticed that the speedometer never went above 38 MPH when I was driving the truck home. It could have been because the truck still thought it was in 4Lo.
What are symptoms of bad transfer case control module?
If the shift is not possible, the selector switch will come on and flash for 30 seconds. Locating the TCCM is not tough. Will BMW End the Production of Manual Cars? Symptoms of a bad TCCM are likely to include flashing a warning message or turning on a warning light on the Driver Information Center (DIC).
There are (2) fuses that control the 4WD. One in the passenger compartment, and (1) under the hood. Check the # 5 (4×4 control module) 15 amp fuse in the passenger compartment. Also check the #13 (4×4 Motor) 20 amp fuse under the hood.
(FYI, once the 4WD was fixed, and reconnected the old shifter motor, and it didn’t work.) The 4WD system will not allow the transfer case to shift in to 4Lo unless it sees 0 MPH. I noticed that the speedometer never went above 38 MPH when I was driving the truck home. It could have been because the truck still thought it was in 4Lo.
What to do if transfer case control module fails self test?
Go on checking the battery positive voltage and ignition voltage. You also have to diagnose the connector of the transfer case shift control switch and the ground circuit for ground. If the TCCM fails the self-test but all these circuits turn out fine, you have to replace the TCCM.
Why does my transfer case control module hang back?
It could one of the transfer case control module symptoms if you are driving a 1999 Jimmy and it hangs back after kicking off the engine. It could happen if the TCCM sends wrong signals to the transmission. You have to change the component to solve this particular problem.
