Fault code lookup

NetworkU1324

Serious

Severity: Serious - have it checked soon

Lost communication with the pneumatic suspension ECU

19 brands affected · Description from Toyota data.

Key terms: Control module: a small computer that runs one part of the car

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 19

BrandCodeDescriptionSystem
BYDU1324Data Length Error BrandNetwork
CheryU1324Data Length Error BrandNetwork
DaewooU1324No description available Network
DFFSU1324Lost communication with the pneumatic suspension ECU BrandNetwork
DFFXU1324Data Length Error BrandNetwork
EOBDU1324Justerbar rattmodul BrandNetwork
GeelyU1324Data Length Error BrandNetwork
GMU1324No description available Network
Great WallU1324Data Length Error BrandNetwork
HafeiU1324Data Length Error BrandNetwork
HoldenU1324No description available Network
MahindraU1324No description available Network
MitsubishiU1324Data Length Error BrandNetwork
OpelU1324No description available Network
PeugeotU1324No description available Network
ProtonU1324Data Length Error BrandNetwork
SaabU1324No description available Network
TataU1324No description available Network
ToyotaU1324Lost communication with the pneumatic suspension ECU BrandNetwork

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.

5Extended variant codes 1

These 7-character codes are manufacturer-specific variants of U1324 and may be reported by some scan tools.

BrandCodeDescriptionSystem
SsangYongU132400Basic Software (BSW) answer error BrandNetwork

6Related codes

Browse Uxxx codes or U132xx codes.

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