P16AB 00. P1383 07.

[Ma3006]

Hi everyone.
Can someone help with these fault codes.
It gives me the service light
1. Is reversible generator.
2. Serpentin belt for engine

In diagbox 7.57 I can't delete the fault codes.
It tells me that "the request is out of tolerance"
Start again or contact helpdesk.

I supposed it's something with the serpentine belt lifespan cause of the stop/start system. So it has been renewed together with the 2
belt tensioner pulley.
So now I only need to delete the fault codes.
But I can't.
Any idea?


The car.
C4 Grand Picasso 2.0 bluehdi mk2 2014

Michael Andersen Denmark

[Huskyxantia]

Ive used your questions with ai and this is the responce , hope it might help

On PSA e-HDI engines equipped with a reversible alternator (Stop-Start system), the engine ECU and the reversible alternator control unit track the cumulative wear/cycles of the serpentine belt.
​When the belt lifespan counter threshold is exceeded:
​A logged fault for the reversible alternator/serpentine belt is triggered.
​The system locks the ECU from simply clearing the codes until the belt replacement procedure and counter reset are executed within DiagBox. Standard OBD code clearing or forcing a clear will return "request is out of tolerance."
​2. How to Reset it in DiagBox 7.57
​Instead of going directly to Fault Reading / Fault Clearing, you must clear it through the repair/maintenance menu for the reversible alternator:
​Connect Diagbox and go into Diagnosis -> Repair.
​Select the Reversible Alternator ECU (or Stop & Start / Micro-Hybrid ECU, depending on how 7.57 labels your specific BSI/ECU tree).
​Navigate to Pack Repair (or Replacement Parts / After-Sales Service).
​Look for an option titled Replacement of the Accessory Belt / Serpentine Belt or Reset Belt Wear Counter.
​Follow the on-screen wizard to confirm the belt replacement. This resets the internal wear counter in the ECU.
​Once the counter reset is successfully validated by DiagBox, go back to the Fault Reading menu and clear the codes. They should clear without the "out of tolerance" error.
​3. Ignition State & Voltage Requirements
​If it still throws "out of tolerance" during the counter reset procedure:
​Engine state: Ensure the ignition is ON, but the engine is fully OFF.
​Battery Voltage: The reversible alternator ECU is sensitive to battery voltage. If the battery voltage drops below ~12.3V during diagnostic communication, commands will fail or time out with tolerance errors. Hook up a battery charger or trickle maintainer to keep voltage stable at 12.5V+ while working in DiagBox.
​Engine ECU Sync: If resetting under the Reversible Alternator menu fails, check under Engine ECU (Injection) -> Repair -> Replacement Parts -> Accessory Belt Replacement. Some software versions route the counter reset through the primary engine ECU instead of the alternator sub-module.
​Once that counter parameter is set back to zero, the ECU will allow the stored faults to be deleted cleanly.

[Ma3006]

Hi.
I have already used AI with roughly the same text.
Without any result.
What i didn't was to put a charger on the battery.
I will do that, and then we'll see.

Michael Andersen Denmark

[windy1603]

On my old DS3 I found option for belt replacement in the repair menu under engine ECU. It worked fine and cleared the code with no issues