5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHNew Battery, now ABS & PSM lights on
Leading reported evidence
Reset codes
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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Discussions that contain suggestions
1
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Suggestion
Get a cheap OBD II code reader and try to reset the codes.
Leading evidence: 'Reset codes' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Reset codes' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Don't buy a fancy one that uses a laptop, I have one and never use it anymore.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
5 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261027T042512Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
After sitting for three weeks while I was on vacation, my car battery finally died. I swapped it out with a new Duramax 48-DL. The car starts and drives fine, but the "ABS" & "PSM Off" lights are on. How do I correct this? TIA.
Get a cheap OBD II code reader and try to reset the codes. Everyone should have one, instructions are with the reader. Don't buy a fancy one that uses a laptop, I have one and never use it anymore. With a SC you get very familiar with them. I have an Actron, Autozone. Will
Try the basics, I would start with the fuses. If there is an open circuit for the ABS control module, it will trigger a light. PSM, don't know but assume the same.
Code Reader shows fault code 4440:
Fault code 4440 Steering angle sensor
If the fault codes 4400 "Transverse acceleration sensor", 4420
"Rate-of-turn sensor" and 4440 "Steering-angle sensor" are displayed
together, there may be an open circuit in the circuit to control
module terminal 39.
Possible cause of fault
♦ Short circuit to ground/voltage or open circuit in circuit to control
module terminals 21, 39
♦ Steering angle sensor calibration incorrect
♦ Wiring/ plug connection faulty
♦ Steering angle sensor faulty
NOTE:
Calibration of the steering angle sensor must be performed on a
measuring platform. The steering angle sensor must be calibrated
after work has been carried out on the running gear in the area of
the front axle. The security code is required for calibration of the
steering angle sensor. The security code is read with the PST2
under menu item "Actual values". Calibration is described
in⇒ Rep. Gr. 4560; Calibrating steering angle sensor.
I highly suspect that this is related to #1: Short circuit to ground/voltage or open circuit in circuit to control module terminals 21, 39 since it came on after a battery replace.
Any ideas where the control module terminals are located?
TIA
This is a source reference. Confirm exact model applicability in the original material.
