2002 C240-ABS, ESP, BAS Not Available Diagn./Rig test

[Jay11]

2002 C240 72700 miles, Dallas Texas

DASH FAULTS
ESP not available diagn./rig test
ABS Not available Diagn./Rig test
BAS Not available Diagn./Rig test
License plate check lamp
4 MALFUNCTIONS appear

All lights on the car work fine, trunk doesn't pop from remote nor does the rear curtain go up and down from dash button.
No CEL (see monitor status below) but iCarsoft reveals these codes, under:-

1-ESP
C1413 Road test:The driving test was not successful. DTC Stored
C1174 - N49 (Steering angle sensor) not inititalized. DTC Status : Fault indicator lamp on
C1410 Road test : Active DTC Status : Fault indicator lamp on

2-SAM-F-Signal acquisition and actuation
B1046 Component B12/2 (Refrigerant pressure sensor 1) of line to component has short circuit or open circuit.(Refrigerant temperature). or check coding refrigerant pressure sensor for component B12/2 (Refrigerant pressure and temperature sensor 1)

B1004 Component R2/2 (Left washer nozzle heater) and (or) R2/3 (Right washer nozzle heater) or the line to the components has a short circuit or open circuit or component R2/1 (heated windshield washer nozzle) and (or) R2/11 (washer nozzle hose heater) or the line to the components has a short circuit or open circuit.


3-REAR SAM-Rear Signal acquisition and a

B1093 Fault in CAN comm with control unit N69/1 (Left front door control unit). If fault occurs with no complaint reported and no malfunctions erase fault memore and perform a function check
DTC Status : Stored


4-C-AAC Convenience automatic air conditioner
B15A8 - Component M2/15 (Left and right footwell flaps actuatior) is stiff or blocked
DTC Status : Current and stored

B1360 Communication error of AC bus with component A32n1 (Blower regulator)
DTC status : Current

B1350 Communication error of AC bus with component B31/2 (Air humidity sensor)
DTC status : Stored

B1301 Communication error of AC bus with component sensor
DTC Status Current



Just before I set out on a 400 mile trip I decided to clear all these codes, then iCarsoft it at the trip's end and see what comes up again. Gassed up at Wally plus a can of Gumout multi system tune up. Cleared the codes and boom ESP, BAS, ABS started cycling on dash. I did the right/left wheel turn a couple of time but ESP persisted. The car drove the 400 miles excellently except it started sounding like bushes were worn out at every bump or rough section of the road. Before ESP,BAS,ABS faults it didn't make these noises.
I successfully tested ABS today in drizzling conditions.
I thought issues 1-4 or some of them were caused by a battery that's going out. There's no date markings on battery. Aesthetically the battery is mint, looks like a recent (1, 2...3 years?) install.

Car sat for 2 days, then drove it 5 minutes to AZ at night (with headlights, radio, heater on); they said battery was only 55% charged so they could not even test alternator/starter. Next day it idled for 30 minutes. Then drove to O'reilly (without heater, radio and headlights being on.) Battery, alternator and starter tested AOK. A day later I stopped at O'reilly (after driving for 20 minutes with lights, heater and radio on), they said the battery was just slightly low @12.4V, just needed a little more charging, that alternator & starter were fine. Now I am a bit confused. Is the alternator ok or not?

When stopped the car idle is just not very smooth, I don't want to say rough but just not smooth.
My main questions are where do I start all the above codes and the not smooth idle?

Other questions are,
How do you know about the fault so you can report, MIL?
How do you perform a function check?

What is the difference between stored and current in DTC Status?

[Jay11]

Hey guys I really need some insight here. I have used an Autel MD805 all systems scanner tool and cleared most of the codes. The only one remaining is as below. I have done lock to lock a bunch of times but ESP/ABS/BAS lights are still on.

Looking at this, what does it point to as the problem?