NetworkU1DD0

Serious

Severity: Serious - have it checked soon

No description available

1 brand affected · No description available.

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

Wiring or connector fault on the communication bus
Faulty control module
Low battery voltage or poor ground
Water ingress in a connector or module
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 1

Brand	Code	Description	System
Mercedes-Benz	U1DD0	No 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.

5Extended variant codes 77

These 7-character codes are manufacturer-specific variants of U1DD0 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	U1DD000	Insert Error text Brand	Network
Mercedes-Benz	U1DD001	Safety Controller FW upgrade error Brand	Network
Mercedes-Benz	U1DD002	NVM state inconsistent Brand	Network
Mercedes-Benz	U1DD003	Implausible measurements Brand	Network
Mercedes-Benz	U1DD004	HS1 failed Brand	Network
Mercedes-Benz	U1DD005	LS1 failed Brand	Network
Mercedes-Benz	U1DD006	ECU over temperature Brand	Network
Mercedes-Benz	U1DD007	Voltage measurement is not plausible Brand	Network
Mercedes-Benz	U1DD008	ECU Runtime Error Brand	Network
Mercedes-Benz	U1DD009	ECU Runtime Error Brand	Network
Mercedes-Benz	U1DD00A	C memory error Brand	Network
Mercedes-Benz	U1DD00B	E2E Failure on LIN Brand	Network
Mercedes-Benz	U1DD00C	E2E Failure on CAN Brand	Network
Mercedes-Benz	U1DD00D	ADC HW Fault Brand	Network
Mercedes-Benz	U1DD00E	ADC HW Fault Brand	Network
Mercedes-Benz	U1DD00F	FUSI Logic HW Fault Brand	Network
Mercedes-Benz	U1DD010	Shortcircuit KL30S Brand	Network
Mercedes-Benz	U1DD011	Charge Pump HW Fault Brand	Network
Mercedes-Benz	U1DD012	Transient Overvoltage Brand	Network
Mercedes-Benz	U1DD013	Broken cable detected Brand	Network
Mercedes-Benz	U1DD014	CAN error Brand	Network
Mercedes-Benz	U1DD015	Critical UV occurred Brand	Network
Mercedes-Benz	U1DD016	Critical OV occurred Brand	Network
Mercedes-Benz	U1DD017	Broken cable detected Brand	Network
Mercedes-Benz	U1DD018	Power failure detected Brand	Network
Mercedes-Benz	U1DD022	The system base chip of the control unit has a malfunction. Clock monitoring error Brand	Network
Mercedes-Benz	U1DD023	The system base chip of the control unit has a malfunction. BUS error Brand	Network
Mercedes-Benz	U1DD024	The system base chip of the control unit has a malfunction. HW failure caught by OS Brand	Network
Mercedes-Benz	U1DD025	SPI communication error - channel 1 Brand	Network
Mercedes-Benz	U1DD026	SPI communication error - channel 2 Brand	Network
Mercedes-Benz	U1DD027	SPI communication error - channel 3 Brand	Network
Mercedes-Benz	U1DD028	CPU check failed Brand	Network
Mercedes-Benz	U1DD029	Internal ECU error Brand	Network
Mercedes-Benz	U1DD02A	System Basis Chip error Brand	Network
Mercedes-Benz	U1DD02B	Control Flow Monitoring failed Brand	Network
Mercedes-Benz	U1DD02C	LIN COM turned off <7V Brand	Network
Mercedes-Benz	U1DD02D	Limit switch stuck Brand	Network
Mercedes-Benz	U1DD02E	No description available	Network
Mercedes-Benz	U1DD031	Range of development fault memory The signal is not present. Brand	Network
Mercedes-Benz	U1DD032	Range of development fault memory The off-time of the signal frequency is too short. Brand	Network
Mercedes-Benz	U1DD033	All safety lib initialization errors which lead to reset of the ECU Brand	Network
Mercedes-Benz	U1DD034	Failures during safety lib tests lead to reset of the ECU Brand	Network
Mercedes-Benz	U1DD035	Failures during External watchdog initialization leads to reset of the ECU Brand	Network
Mercedes-Benz	U1DD036	No description available	Network
Mercedes-Benz	U1DD037	No description available	Network
Mercedes-Benz	U1DD038	No description available	Network
Mercedes-Benz	U1DD046	Implausible data were received from the long range radar sensor. There is an error in the calibration or parameterization memory. Brand	Network
Mercedes-Benz	U1DD047	No description available	Network
Mercedes-Benz	U1DD048	No description available	Network
Mercedes-Benz	U1DD060	ADSE_LongCtrlMd_Rq unexpected value Brand	Network
Mercedes-Benz	U1DD061	ADSE_EPKB_Rq unexpected value Brand	Network
Mercedes-Benz	U1DD062	ADSE_SSA_Rq unexpected value Brand	Network
Mercedes-Benz	U1DD063	No description available	Network
Mercedes-Benz	U1DD068	Range of development fault memory There is incomplete information. Brand	Network
Mercedes-Benz	U1DD069	Range of development fault memory Brand	Network
Mercedes-Benz	U1DD070	Range of development fault memory Brand	Network
Mercedes-Benz	U1DD071	Implausible data were received from the long range radar sensor. The actuator is blocked. Brand	Network
Mercedes-Benz	U1DD072	Range of development fault memory The actuator does not close. Brand	Network
Mercedes-Benz	U1DD077	Range of development fault memory The commanded position cannot be reached. Brand	Network
Mercedes-Benz	U1DD078	Range of development fault memory The adaptation or adjustment is incorrect. Brand	Network
Mercedes-Benz	U1DD079	No description available	Network
Mercedes-Benz	U1DD080	Range of development fault memory Brand	Network
Mercedes-Benz	U1DD081	Range of development fault memory Incorrect data were received. Brand	Network
Mercedes-Benz	U1DD082	Range of development fault memory The instruction counter is not updated. Brand	Network
Mercedes-Benz	U1DD083	Ethernet Frame CRC Checksum Brand	Network
Mercedes-Benz	U1DD084	Ethernet signal quality low Brand	Network
Mercedes-Benz	U1DD085	Range of development fault memory There is a signal above the permissible limit value. Brand	Network
Mercedes-Benz	U1DD086	Range of development fault memory There is an incorrect signal. Brand	Network
Mercedes-Benz	U1DD087	Communication long range radar sensor has a malfunction. The message is missing. Brand	Network
Mercedes-Benz	U1DD088	No description available	Network
Mercedes-Benz	U1DD093	Range of development fault memory There are no instructions. Brand	Network
Mercedes-Benz	U1DD094	Range of development fault memory There is an unexpected instruction. Brand	Network
Mercedes-Benz	U1DD097	Range of development fault memory The system function is restricted. Brand	Network
Mercedes-Benz	U1DD098	Range of development fault memory The component or the system has overtemperature. Brand	Network
Mercedes-Benz	U1DD099	Range of development fault memory Brand	Network
Mercedes-Benz	U1DD0E0	error indicates, if a fault is detected during complete DRAM check Brand	Network
Mercedes-Benz	U1DD0E1	No description available	Network

6Related codes

Browse Uxxx codes or U1DDxx codes.