U2152

Code

LAND ROVER U — Network/User

SCP (J1850) Invalid or missing data in the electronic control module general to enable the steering column lock

Brand: LAND ROVER

Type: U — Network/User

Views: UK: 12 EN: 20 RU: 15

AI status

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Page language: EN

Causes

Loss of SCP/J1850 bus message(s) from one or more modules
Intermittent or open/shorted wiring or connector to the steering column lock module
Poor power supply or ground to the steering column lock or source module
Corroded or damaged connectors or pin(s) in the network
Faulty steering column lock module or other module transmitting the enable data
Module not coded/programmed or software mismatch after replacement

Symptoms

Steering column lock will not engage or will not release
Vehicle may not start or may show immobilizer/security symptoms
Steering lock or security warning lamp/message on dash
DTC U2152 present and possibly other network communication codes
Intermittent or inconsistent lock/unlock behavior

What to check

Read all stored and pending codes from all modules; note freeze frames and related U-codes
Verify battery voltage is within specification (typically 12–14 V with engine off/running as appropriate)
Visually inspect connectors and wiring to the steering column lock module and nearby harness for damage or corrosion
Check for other network communication faults (U0100, U0140, U0155, etc.) to identify affected modules
Use a scan tool to verify the steering column lock module is present on the network and view live data/messages
Perform wiggle tests on harness while monitoring communication for intermittent changes

Signal parameters

SCP/J1850 bus: presence/absence of expected enable message for steering column lock
Message frequency and message ID (verify message is present and periodic with scan tool or scope)
Data payload: enable flag/state bit for steering column lock (should change with key/ignition/remote events)
Module supply voltage: 11–14 V (battery/charging system dependent)
Ground continuity and resistance to chassis ground
Bus line waveform integrity (no excessive noise or missing pulses) when measured with oscilloscope

Diagnostic algorithm

Connect a full-function scan tool to read U2152 and any related codes from all modules; record freeze-frame/live data.
Attempt to reproduce the fault: operate ignition/lock/unlock and observe steering column lock behavior and network messages.
Verify battery voltage and charging system; charge battery to proper level if low and retest.
Inspect and secure connectors at the steering column lock module and related modules; check for corrosion, bent pins or water intrusion.
With key in appropriate positions, use scan tool to monitor SCP/J1850 messages: confirm whether the enable message is being transmitted and which module is the source.
If message absent, trace wiring and perform continuity/resistance checks between modules and the bus; look for opens/shorts to battery or ground.
Use an oscilloscope to view bus waveform for missing or distorted pulses and to identify intermittent faults under wiggle test.
Verify power and ground circuits to the steering column lock module (voltage with key on and off, ground resistance).
If a specific module is not transmitting, inspect that module for faults; review service history for recent module replacement or software updates and reprogram/recode as required by manufacturer.
After repairs, clear codes and perform functional tests for several cycles; confirm no recurrence and that the steering column lock operates normally.

Likely causes

Broken/loose connector or damaged wiring in SCP/J1850 network near steering column
Power/ground fault at the steering column lock control module
Another module on the J1850/SCP bus failing to transmit the enable message
Module recently replaced and not properly coded or with incorrect software
Intermittent bus voltage due to poor battery or poor main power connection

Fault status

⚠️ Status

SCP/J1850 data missing or invalid for steering column lock enable

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 0.5-2 hours

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