OTODÜNYAMAUTOMOTIVE KNOWLEDGE CENTER
Terrano
Technical identity dossier for Terrano, separating market, period, platform, powertrain and research focus.
Technical identity summary
Source variant count: 1 · Status: ACTIVE_USED
This page does not treat the same sales name as one vehicle across all years and markets. Rows below remain separated by source region and variant identity.
Terrano · Japan
| Record | VR-000712 |
|---|---|
| Period | 1986– • Status requires source verification |
| Platform / generation | WD21-R20/Dacia taban |
| Powertrain / energy / driveline | SUV • Gasoline/diesel |
| Research focus | verify platform/generation, powertrain/energy/driveline and market-specific application identity against manufacturer/source records before applying parts, service procedures or chronic-fault claims. |
Where should diagnosis start?
- Compare common-rail pressure, air path, EGR/DPF/SCR and turbo control under the same load condition.
Exact OEM torque, pressure, capacity, pin or calibration values are not inferred from this normalized identity record; a verified service source is required for the exact vehicle application.
Recorded application matrix and evidence boundary
| Record | Region | Period | Platform | Powertrain record | Evidence |
|---|---|---|---|---|---|
| VR-000712 | Japan | 1986– | WD21-R20/Dacia taban | SUV • Gasoline/diesel | D · source-lineage identity; not OEM service evidence |
Grade-D records are not OEM service procedures; they are source-lineage research rows preserving market/generation/powertrain identity. Exact torque, pinout, pressure or fitment is not inferred from this layer.
System architecture: what does this record indicate?
- Fuel path is separated into low-side supply → high-pressure pump → rail → injectors; air path into MAF/MAP → turbo control → intake manifold.
Freeze-frame and live-data package
- Freeze frame: first/last fault time, RPM, load, vehicle speed, system voltage, core temperatures and companion DTCs.
- Live data: rail target/actual, low-side supply where supported, MAF/MAP, boost target/actual, EGR command/feedback.
- Aftertreatment: DPF differential pressure, soot/ash calculations, EGT chain, NOx in/out and SCR/DEF dosing enable.
Measurement sequence
- 1) Match vehicle/generation/market/powertrain/driveline identity to the source record; family name alone is not fitment evidence.
- 2) Preserve freeze frame and companion DTCs before clearing; make the first-fault condition reproducible.
- 3) Verify power/ground and network communication under load; do not decide from key-on static measurement alone.
- 4) Compare commanded air/fuel/pressure with an independent physical result; separate sensor bias from real performance loss.
- 6) After repair, recreate the same load/temperature and verify DTC state, live-data deviation and user symptom together.
Root-cause discrimination matrix
- If rail pressure is low, separate low-side supply from high-pressure generation: when physical low-side supply is healthy but rail cannot follow target, regulation/pump/injector-leakage branches gain weight.
- For low boost, do not jump to turbo replacement: separate MAF/MAP plausibility, charge leak, VGT/wastegate command and exhaust backpressure at the same load point.
Connected technical centers
Market and generation variants
Sources & freshness
Exact technical values, prices and failure rates are not invented without verified vehicle/manufacturer evidence.