B1C01

Code

LAND ROVER B — Body

Switch of memory storage

Brand: LAND ROVER

Type: B — Body

Views: UK: 10 EN: 32 RU: 21

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Page language: EN

Causes

Faulty memory-store switch (mechanical or electrical failure)
Open or short in switch wiring or damaged connector
Poor ground or supply (blown fuse, loose battery feed)
Corroded or contaminated switch contacts
Faulty body control module (BCM) or memory module
Intermittent wiring damage (pinched, chafed) or poor repair splice

Symptoms

Memory button does not store or recall positions
No response when memory switch pressed
Intermittent operation of memory function
Possible dash message or warning related to memory functionality
No change in actuator behavior when memory command given

What to check

Scan vehicle for active and stored DTCs and note freeze-frame data
Confirm vehicle symptom by attempting to store/recall memory positions
Visual inspection of switch, connector, and harness for damage, corrosion or water ingress
Check related fuses and power supply to the switch
Check module grounds for cleanliness and tightness
Check for possible vehicle software updates or known service bulletins

Signal parameters

Supply voltage at switch: ~11–14.5 V with ignition on
Switch closed continuity: near 0–2 Ω (multimeter)
Switch open resistance: OL or >1 MΩ
Ground continuity to chassis:
When pressed, switch should present a change (voltage or ground) to the BCM; CAN/serial message should be present if applicable

Diagnostic algorithm

Verify the fault: read DTC B1C01 and related codes with a diagnostic scanner; record freeze-frame and occurrence counts.
Reproduce symptom: operate the memory-store switch and observe behavior and any lamp/messages.
Visual inspection: examine switch, bezel and harness for damage, corrosion, moisture or loose pins; repair as needed.
Power and ground: check fuse for the circuit, verify supply voltage at the switch connector with ignition on, and verify a good ground reference.
Switch function test: backprobe the switch connector and verify the expected signal change when pressing the button (voltage to battery or ground depending on design). Use a multimeter or scope for intermittent faults.
Continuity test: with ignition off, check continuity/resistance between switch pins and the BCM connector to locate opens or high resistance.
Wiggle test: with connector connected, wiggle harness/switch while observing live data for drop-outs or intermittent change in switch state.
Module input check: confirm the BCM or memory module receives the switch input (use manufacturer diagnostic data / live parameters or CAN data).
Replace/repair: if switch or wiring fails tests, repair wiring or replace the switch. If wiring and switch are good and input not seen at BCM, investigate BCM power/ground or consider module fault.
Clear codes and retest: erase DTCs, perform function test and road test or repeated operation cycles to confirm repair.
If fault persists, consult manufacturer service information for wiring diagrams, pinouts and any software updates or extended diagnostics.

Likely causes

Failed memory-store switch
Loose/corroded connector at the switch
Blown fuse or poor supply to the switch
Intermittent open/short in harness to BCM

Fault status

⚠️ Status

B1C01 — Switch of memory storage circuit fault recorded (check switch, wiring, power/ground, and module communication).

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 0.5 - 1.5 hours

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