Fault code lookup

NetworkU2321

Serious

Severity: Serious - have it checked soon

Throttle Actuator On Intake Manifold. Position Sensor. (Bank 2.) Incorrect Or Intermittent Data

7 brands affected · Description from Ashok Leyland CV data.

Key terms: Control module: a small computer that runs one part of the car · Bank 2: the side of the engine containing cylinder 2

1What it means in plain English

Control modules in the car cannot communicate with each other over the vehicle network.

2Common causes

  1. Wiring or connector fault on the communication bus
  2. Faulty control module
  3. Low battery voltage or poor ground
  4. Water ingress in a connector or module
  5. Aftermarket device interfering with the bus

3Can I drive?

Serious · drive with care

The car may run normally or may not run at all. If the module that has lost communication controls steering, brakes, park brake, charging or engine cooling, drive only if those systems feel normal; stop safely if the steering becomes heavy, a brake warning appears, or the engine temperature climbs. If the car will not start or runs badly, have it towed.

This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.

4Brand data 7

BrandCodeDescriptionSystem
Ashok Leyland CVU2321Throttle Actuator On Intake Manifold. Position Sensor. (Bank 2.) Incorrect Or Intermittent Data BrandNetwork
DaewooU2321No description available Network
GMU2321No description available Network
HoldenU2321No description available Network
OpelU2321No description available Network
PeugeotU2321No description available Network
SaabU2321No description available Network

Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.

5Related codes

Browse Uxxx codes or U232xx codes.

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