Code
B1560
MITSUBISHI
B — Body
DR.cut SW fault
Views:
UK: 8
EN: 19
RU: 27
AI status
Completed
Completed
100%
Causes
- Faulty door cut / door ajar switch
- Open or shorted wiring between switch and body/control module
- Corroded or loose connector at switch or module
- Blown fuse or power/ground fault affecting the circuit
- Intermittent contact due to damage or contamination
- Control module input fault (rare)
Symptoms
- Door ajar / related warning lamp may be illuminated or intermittent
- Interior lights may not behave correctly with door open/close
- Central locking or alarm may not arm/disarm correctly
- DTC stored and possible related system disablement
What to check
- Retrieve freeze frame and live data with a scan tool; note which door input shows fault
- Visual inspection of door switch, harness in hinge/door jamb, and connectors for damage or corrosion
- Check related fuse(s) and ground points
- Operate the door switch manually while monitoring live signal at module and switch connector
- Perform continuity and resistance checks on switch and wiring
Signal parameters
- Switch closed: continuity to ground (≈0 ohms) or signal near 0 V at module input (depending on circuit design)
- Switch open: open circuit or signal pulled to battery voltage via pull-up (approx. 9–14 V)
- Intermittent: fluctuating voltage between 0 V and battery voltage or unstable resistance
- Typical switch resistance when closed: low (
Diagnostic algorithm
- Confirm DTC and note affected door(s) using an OBD scan tool. Record any freeze frame or live data.
- Visually inspect the door switch, striker area, wiring through the door hinge, and connectors for physical damage, corrosion, or pin push-out.
- Check fuses and chassis grounds related to the body control/door circuits.
- Backprobe the switch connector and monitor voltage while operating the door switch. Verify expected open/closed signal levels match signal_params.
- If voltage is incorrect, trace wiring to locate opens/shorts; repair broken wires, pin damage, or poor crimps as needed.
- If switch operation is suspect, remove and bench test or replace the switch and retest.
- If wiring and switch check good, check voltage/signal at the control module connector; if module input is inactive or erratic, consider module repair/replacement only after confirming wiring/switch integrity.
- After repairs, clear DTCs and perform functional test by cycling the door and verifying no reoccurrence of B1560.
Likely causes
- Damaged door switch or plunger
- Broken wiring harness in door hinge area
- Connector corrosion or bent pins at switch/module
- Ground disconnected or high resistance ground
- Aftermarket equipment or prior repair damage
Fault status
Status
Door cut switch circuit fault detected — open/short or implausible signal from the door switch input.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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Code
B1560
Other
B — Body
Door Lock Cylinder Circuit Open
Views:
UK: 20
EN: 44
RU: 40
AI status
Completed
Completed
100%
Causes
- Faulty door cut / door ajar switch
- Open or shorted wiring between switch and body/control module
- Corroded or loose connector at switch or module
- Blown fuse or power/ground fault affecting the circuit
- Intermittent contact due to damage or contamination
- Control module input fault (rare)
Symptoms
- Door ajar / related warning lamp may be illuminated or intermittent
- Interior lights may not behave correctly with door open/close
- Central locking or alarm may not arm/disarm correctly
- DTC stored and possible related system disablement
What to check
- Retrieve freeze frame and live data with a scan tool; note which door input shows fault
- Visual inspection of door switch, harness in hinge/door jamb, and connectors for damage or corrosion
- Check related fuse(s) and ground points
- Operate the door switch manually while monitoring live signal at module and switch connector
- Perform continuity and resistance checks on switch and wiring
Signal parameters
- Switch closed: continuity to ground (≈0 ohms) or signal near 0 V at module input (depending on circuit design)
- Switch open: open circuit or signal pulled to battery voltage via pull-up (approx. 9–14 V)
- Intermittent: fluctuating voltage between 0 V and battery voltage or unstable resistance
- Typical switch resistance when closed: low (
Diagnostic algorithm
- Confirm DTC and note affected door(s) using an OBD scan tool. Record any freeze frame or live data.
- Visually inspect the door switch, striker area, wiring through the door hinge, and connectors for physical damage, corrosion, or pin push-out.
- Check fuses and chassis grounds related to the body control/door circuits.
- Backprobe the switch connector and monitor voltage while operating the door switch. Verify expected open/closed signal levels match signal_params.
- If voltage is incorrect, trace wiring to locate opens/shorts; repair broken wires, pin damage, or poor crimps as needed.
- If switch operation is suspect, remove and bench test or replace the switch and retest.
- If wiring and switch check good, check voltage/signal at the control module connector; if module input is inactive or erratic, consider module repair/replacement only after confirming wiring/switch integrity.
- After repairs, clear DTCs and perform functional test by cycling the door and verifying no reoccurrence of B1560.
Likely causes
- Damaged door switch or plunger
- Broken wiring harness in door hinge area
- Connector corrosion or bent pins at switch/module
- Ground disconnected or high resistance ground
- Aftermarket equipment or prior repair damage
Fault status
Status
Door cut switch circuit fault detected — open/short or implausible signal from the door switch input.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Similar codes
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