B0005: collapsible column deployment control. Why B0005-56 after RCM replacement needs configuration checks on applicable vehicles.
Meaning, symptoms, causes and checks
In the referenced restraint-system definition, B0005 concerns deployment control of a collapsible steering column. Its suffix can change the diagnosis completely. JLR documents B0005-56 as an incompatible RCM configuration after module replacement on specified North American Evoque L538 vehicles; that software case must not be generalised to every car.
Affected system: Supplemental restraint system (SRS)
Symptoms
- B0005 stored in the restraints control module.
- In the documented configuration case, B0002-13 may also be recorded after RCM replacement.
Possible causes
- For the specified B0005-56 case: software selection based on an older replacement-module software level rather than the vehicle's as-built level.
- Other suffixes require their own OEM circuit or configuration diagnosis; this example does not establish a mechanical steering fault.
What to check
- Read the full code in the RCM and confirm the manufacturer definition; do not use a steering-lock procedure from a different model.
- Establish whether the fault first appeared after RCM replacement and whether B0002-13 is also present.
- For an applicable Evoque L538 NAS with B0005-56, have the workshop verify replacement-module software and as-built configuration against the current JLR service instructions.
- The historical SSM74577 patch is evidence of a configuration cause, not a current universal programming instruction. Confirm any superseding guidance before programming.
- For another vehicle or suffix, follow its SRS diagnostic procedure. Do not probe deployment devices. Verify fault clearance and the prescribed SRS self-test after the confirmed repair.
Also written as: B0005-00, B000500, BO005 (some scan tools add the fault-type byte, e.g. -00).