Electrical issues

North 49 Angling · October 4, 2021

My truck will out of the blue . Dash and lights go black and start working again . Also at low speeds my steering will won't let me turn spazs out . I need help is it a ground issue or is it a truck computer issue ... I'm trying to disconnect battery cabel for a while to reset everything see if that helps

newdude · October 4, 2021

Bad battery cables and or bad battery cable fuse block.

#18-NA-161: Steering Jerks Or Kicks Back / Reduced Power Steering Assist / Engine Stall / No Start / Service Stabilitrak / IPC / Radio / HVAC Goes Blank Various DTCs - (Jun 23, 2021)

Involved Region or Country	North America, Europe, Russia, Middle East, Chile, Colombia, Ecuador, Paraguay, Peru, Japan, South Korea, China and Thailand.
Condition	Important: For 2014 Vehicles please check VIN status per Safety recall 17276. Execute denoted action if VIN status is “open”. Important: For 2015 Vehicles please check VIN status per Safety recall 18289. Execute denoted action if VIN status is “open”.
Condition	Note: If there are steering related complaints related to this bulletin, please review bulletin 17-NA-345, PIT5457 and 20–NA-113. Some customers may comment on one or more of the following conditions: Reduced or loss of power steering assist (only LD models equipped with electric power steering) Steering wheel jerks or kicks back when turning Service Stabilitrak message with warning chime Engine stall IPC going blank or inoperative Radio/ICS going blank HVAC going blank Hood ajar message and/or dome lamps flash when shifting into reverse Alarm sounds when locking doors or door locks cycling Wipers continue to run for a short time after turning off and then stop/park in the incorrect location Important: Record history and current codes from all modules before clearing to aid in diagnostics. Some technicians may find one or more of the following DTC’s set: B1325, B124B, B124C, B127B, B127E, C0544, C0710, C0800, P0513, U0020, U0073, U0077, U0078, U0100, U0101, U0102, U0121, U0126, U0131, U0140, U0155, U0164, U0415, U0422, U0428, U0452, U1509, U150F and/or U15E1
Note: The following causes listed below, may cause the battery to discharge.
Cause 1	This condition may be caused by battery cables with high resistance and/or loose connections at the: Positive or negative battery cables Battery fuse block
Cause 2	This condition may be caused by a poor BCM ground at G218.
Cause 3	This condition may be caused by a shorted B+ Battery cable (3) at the Starter Solenoid caused by: A loose starter shield contacting the starter battery cable terminal ring. A starter cable ring terminal that has been mis-installed and/or rotated when installed on the starter solenoid.
Cause 4	This condition may be caused by a discharged or faulty battery.
Correction 1	Note: If no loss of power component or interface is detected, consider changing out both the negative cable and BDU cable and torque appropriately Important: The following steps must be completed in order. Grasping or attempting to rotate cables could affect readings and should be done after performing the voltage drop measurement. Note: When checking voltage drop, the voltage drop should be performed with the fuel system disabled (or hold the accelerator WOT) and while cranking the engine. MIN/MAX on the Digital Multi Meter (DMM) should NOT be used. The voltage drop should be monitored at a STEADY crank. Inspect for any high resistance and/or loose connections at both the battery fuse block and the positive or negative battery cables. Perform a loaded voltage drop test on the short positive battery cable (1). Refer to “Measuring Voltage Drop” in SI. If the voltage drop is above 100 mV, replace the affected cable(s). For positive cable parts information, refer to the Parts Information section. Perform a loaded voltage drop test on the negative battery cable (2). Refer to “Measuring Voltage Drop” in SI. If the voltage drop is above 200 mV, replace the affected cable. For negative cable parts information, refer to the Electronic Parts Catalog (EPC). It is imperative that both the positive and negative battery top posts protrude above the battery cable clamps 1-2 mm (0.040 - 0.080 in) to be properly installed, as shown (3). Check both the positive and negative battery cable clamp nuts and make sure they are properly tightened to 7 Nm (62 lb in). After the positive and negative battery cables are fully installed and tightened to 7 Nm (62 lb in), grasp each battery cable near the battery post and make sure they are secure and that they do not spin on the post. If they spin, replace the battery cable. For positive cable parts information, refer to the Parts Information section. For negative cable parts information, refer to the Electronic Parts Catalog (EPC). Inspect the battery fuse block cable connections for being lose by grasping each cable near the eyelet and verify they do not rotate on their respective stud. Verify each nut is torqued properly to 15 Nm (11 ft lb). Inspect the negative battery cable where it connects to the engine block and make sure it is not lose by grasping the cable near the eyelet and verify it does not rotate. Verify the cable nut is torqued properly to 45 Nm (33 ft lb).
Correction 2	Note: If no loss of power component or interface is detected, consider changing out both the negative cable and BDU cable and torque appropriately Inspect G218 (applies LD Trucks and SUVs built prior to June 2015): Check for the nut being loose or cross threaded (1), repair and tighten as necessary. Check for the front of dash insulator mat (2) being trapped between the ground eyelet and the body/stud as shown. If the dash insulator mat is trapped, cut the mat away from the ground stud so it will no longer interfere. Reinstall the ground eyelet, the nut, and retighten.
Correction 3	Inspect the starter solenoid B+ battery cable for possible contact at the starter heat shield (1) or a loose shield resting on terminal. If the battery cable is shorting out on the starter heat shield, replace the B+ battery cable and starter heat shield. After installing the new starter heat shield and B+ battery cable, ensure there is adequate clearance and each fastener is torqued properly so it will no longer short out.
Correction 4	Perform the "Battery Inspection/Test" procedure in SI, using the GR8, and replace the battery if it fails the test. Technicians must attach the GR8 test print out with a Battery Replace decision, that includes the Warranty Code, to the repair order.