# Service campaign CB24\-L\-001

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service campaign
- NHTSA id: 11005679
- Published by NHTSA: 2024\-08\-05
- Manufacturer's number: CB24\-L\-001
- Manufacturer's date: 2024\-07\-22
- Campaign id or software version: V2403
- NHTSA component: ENGINE

## NHTSA's summary

CUSTOMER SATISFACATION CAMPAIGN\_ ISUZU HAS DETERMINED THAT CERTAIN 2022 – 2024MY ISUZU N\-SERIES VEHICLES EQUIPPED WITH 5.2L \(4HK1\) DIESEL ENGINES AND OPTION \(IE1\) 4\-WHEEL DISC BRAKES WERE BUILT WITH AN ENGINE CONTROL MODULE \(ECM\) AND DIESEL EXHAUST FLUID CONTROL UNIT \(DCU\) CONTAINING AN ON BOARD DIAGNOSTIC \(OBD\) CALIBRATION ERROR FOR DIAGNOSTIC TROUBLE CODES \(DTC\) P2201 NOX SENSOR CIRCUIT PERFORMANCE SENSOR 1 AND P20EE DIESEL EXHAUST FLUID \(DEF\) SYSTEM NOX TRAP LOW EFFICIENCY.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11005679-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11005679-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine

## Trouble codes named

P20EE, P2201

## Vehicles listed

- 2022 to 2024 ISUZU N\-SERIES

JSON: [/v1/bulletins/11005679](/v1/bulletins/11005679)

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