P062C

Code

LAND ROVER P — Powertrain

Vehicle speed performance in the internal control module

Brand: LAND ROVER

Type: P — Powertrain

Views: UK: 20 EN: 39 RU: 16

AI status

Completed

ready

Completed 100%

Page language: EN

Causes

Faulty internal control module (instrument cluster, gateway or other module reporting speed)
Corrupted or out-of-date module software/firmware
Intermittent or failed CAN/LIN communication between modules
Damaged wiring or poor connector/ground related to vehicle speed sensors or CAN bus
Faulty wheel speed sensors or reluctor tone rings (ABS sensors)
Low battery voltage or poor power/ground to the reporting module

Symptoms

Speedometer incorrect, jumping, frozen or showing 0 mph/kph
Cruise control may not engage or may disengage
ABS, traction control or stability control warning lights illuminated
Transmission shift issues (erratic shifting or limp-home mode)
Multiple modules reporting speed-related faults or reduced functionality

What to check

Read and record all stored DTCs and freeze frame data from all modules (PCM/TCM/ABS/cluster/gateway).
Check live vehicle speed (VSS) data from different modules — compare instrument cluster, ABS, PCM and TCM values.
Inspect battery condition and measure supply voltage at the affected module(s).
Visually inspect CAN bus wiring, connectors and grounds for damage, corrosion or loose pins.
Check wheel speed sensors and tone rings for damage, debris or excessive air gap.
Scan for communication errors on the network (U0xxx codes) and monitor CAN error counters if available.

Signal parameters

CAN vehicle speed message: periodic broadcast between modules (check presence and frequency using OEM tool) — typically tens of ms per update
Wheel speed sensor (ABS) types: Hall/active sensors produce square/digital pulses; VR (magnetic) sensors produce AC sine-like waveform. Frequency increases with speed.
Reference/logic voltages: module supply typically ~12 V; sensor reference often 5 V (verify with service data)
Expected behavior: consistent speed values across modules; no CRC or sequence errors on CAN frames
Typical wheel speed signal frequency example: low Hz at idle, increasing proportionally with wheel rotation (verify with oscilloscope or lab scope)

Diagnostic algorithm

Connect OEM-level scan tool. Record DTC P062C and any related codes from ABS, PCM, TCM, cluster and gateway. Note freeze frame and live vehicle speed values.
Clear codes and perform a short road test while monitoring live speed from multiple modules. Note if P062C returns and whether speeds differ between modules.
If speed is missing from one module but present on others, focus on wiring/connectors and power/ground to that module. Backprobe harness connector and verify supply, ground and signal presence.
If different modules disagree on speed, inspect CAN bus continuity and termination. Check for excessive CAN error frames or lost messages using diagnostic tool or scope.
Inspect wheel speed sensors and tone rings at each wheel. Wiggle test connectors and measure sensor outputs with a scope or multimeter while spinning wheel (compare to service specifications).
If sensor signals and CAN are good but the cluster/internal module shows incorrect performance, check for available software updates or known module faults; reflash or reprogram per factory procedures if applicable.
Replace or repair damaged wiring, connectors, or tone rings as needed. After repairs, clear codes and retest road behavior and module speed agreement.
If all peripheral checks are good and software update did not clear the issue, consider replacement of the failing internal control module following OEM replacement/coding procedures.
After module replacement or repair, perform any required relearns, calibrations or coding (instrument cluster adaptation, ABS/TCM coding) and verify functionality.
Document findings and retest to confirm no recurrence before returning vehicle to service.

Likely causes

Loss or corruption of vehicle speed message on CAN bus (communication fault)
Faulty instrument cluster or internal control module software failure
Faulty wheel speed sensor or tone ring producing incorrect/no speed pulses
Poor power/ground or intermittent connector at the module
ABS/TCM reporting a different speed (module mismatch or configuration)

Fault status

⚠️ Status

Vehicle speed performance fault detected by internal control module — vehicle speed data missing, inconsistent or outside expected parameters.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1.0-3.0 hours

Repair manuals

Manual library for LAND ROVER

413

Browse 413 LAND ROVER manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

LAND ROVER

Your experience will help others

+100 karma for a short comment :)

Was this AI description helpful?

Your feedback helps improve AI descriptions.

👍 Like 0 👎 Dislike 0

Send to email

P062C — Vehicle speed performance in the internal control module