Engine & fuel system
1 documented fault — symptoms, causes and workshop fixes.
Slow or no engagement of rear differential lock following repair or service
Cause
Incorrect specification rear differential oil used.
Repair
- Renew rear differential oil. Ensure rear differential oil to manufacturer's specifications.
Data: Motorwise Workshop. Bulletin 7.
Electrical & ignition
3 documented faults — symptoms, causes and workshop fixes.
Tailgate will not release when release switch pressed
Cause
Tailgate release switch contaminated with corrosion or dirt.
Repair
- Fit new tailgate release switch.
Data: Motorwise Workshop. Bulletin 1.
Reverse lamps not working even though fuse intact
Cause
Additional fuse for reverse lamp circuit blown.
Repair
- Check all fuses. Replace blown fuse(s).
Data: Motorwise Workshop. Bulletin 4.
SRS warning lamp illuminated
Overview
- Affects
- All models.
- Fault codes
B1856
Symptoms
Trouble code stored in SRS control module fault memory: B1856.
Cause
Wiring harness multi-plug not correctly latched to LH rear side airbag.
Repair
- Ensure wiring harness multi-plug is fully engaged and latched to LH rear side airbag.
- Erase any stored trouble codes.
Data: Motorwise Workshop. Bulletin 5.
Brakes
2 documented faults — symptoms, causes and workshop fixes.
ABS warning lamp illuminated. Trouble code stored: C1201
Overview
- Affects
- All models with ABS.
- Fault codes
C1201- Remedy
- Fit new part
Cause
Engine control module (ECM) faulty.
Repair
- Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
- If no fault(s) found: Fit new engine control module (ECM).
Data: Motorwise Workshop. Bulletin 2.
ABS warning lamp illuminated
Overview
- Affects
- All models with ABS.
Symptoms
ABS fuse (30A) blows immediately when replaced.
Cause
ABS wiring harness chafed through in engine bay causing short circuit.
Repair
- Inspect wiring harness for chafing. Repair wiring harness as necessary.
- Replace blown fuse.
Data: Motorwise Workshop. Bulletin 3.
Clutch & gearbox
1 documented fault — symptoms, causes and workshop fixes.
Engine malfunction indicator lamp (MIL) flashing. No trouble codes stored in fault memory
Symptoms
Electric stability program (ESP) warning lamp flashing. Transmission low range warning lamp flashing.
Cause
Exhaust gas recirculation (EGR) system restricted or blocked.
Repair
- Thoroughly clean exhaust gas recirculation (EGR) system. Repair/replace component(s) as necessary.
Data: Motorwise Workshop. Bulletin 8.
Air conditioning & heating
1 documented fault — symptoms, causes and workshop fixes.
Heater blows cold air when engine idling at operating temperature
Cause
Air lock in cooling system.
Repair
- Bleed cooling system.
Data: Motorwise Workshop. Bulletin 6.
Glossary
Technical terms used in this guide.
- ECM
- Engine control module — the electronic unit that manages the engine
- ABS
- Anti-lock braking system — stops the wheels locking under hard braking
- EGR
- Exhaust gas recirculation — feeds some exhaust gas back into the intake to cut emissions
- Trouble Codes
- Standardised fault codes stored by the engine control module, read with a diagnostic tool
- ESP
- Electronic stability programme — brakes individual wheels to stop a skid
- LH
- Left-hand — the left side of the vehicle as you sit in it
- SRS
- Supplementary restraint system — the airbags and seat-belt pretensioners
- Control Module
- A control unit for one of the vehicle's systems (engine, gearbox, brakes, body, and so on)
- Fault Memory
- The list of stored trouble codes in a control module
- Multi-Plug
- A multi-pin electrical connector on a wiring harness
- Trouble Code
- A standardised fault code stored by a control module, read with a diagnostic tool
- Wiring Harness
- The bundled cables that carry power and signals around the vehicle
- Recirculation
- Air-conditioning mode that recirculates cabin air instead of drawing in outside air
Frequently asked questions
What are the common faults with the Toyota Landcruiser 4.5 V8 D-4D?
This guide contains eight workshop bulletins for the Toyota Landcruiser 4.5 V8 D-4D. Of these, three concern the electrical and ignition and two the brakes. Symptoms, causes, repair steps and part numbers are shown where supplied.
Does every Toyota Landcruiser 4.5 V8 D-4D have these faults?
No. These are patterns documented across the model by workshops, not predictions for an individual vehicle. Where a fault applies only to certain vehicles or VIN ranges, that is listed with the fault.
Can I check for Toyota Landcruiser 4.5 V8 D-4D faults myself?
Many of them. The documented symptoms can be seen, heard or felt during a test drive.