1999-2002 Isuzu 6VE1, 6VD1, 4JX1 Workshop Manual (P/N RV99_02-01.E)
Isuzu Models Covered & Key Technical Specifications
Models: Isuzu 6VE1, Isuzu 6VD1, Isuzu 4JX1
Sub-models / Variants: RHD (Right Hand Drive), LHD (Left Hand Drive), UBS (Vehicle Model Series), US Version, Saudi/Philippine market variants
Model Years: 1999–2002
Technical Data:
- Compressor (DKV-14D): Vane rotary (invariable), 5 vanes, 64 mm rotor diameter, 140 cc displacement, 7,000 rpm maximum speed
- Compressor (HD6): Vane rotary (invariable), 6 vanes, 64 mm rotor diameter, 164 cc displacement, 9,000 rpm maximum speed
- Compressor (DKS-15CH): Swash plate type, 6 cylinders, 36 mm bore, 24 mm stroke, 147 cc displacement, 7,000 rpm maximum speed
- Refrigerant: HFC-134a, 750 g (1.65 lbs) specified amount
- Thermostat Switch: Electronic, OFF at 3.5 ± 0.5 °C (38.3 ± 0.9 °F), ON at 5.0 ± 0.5 °C (41.0 ± 0.9 °F)
- Triple Pressure Switch (Medium): ON at 1471 ± 98 kPa, OFF at 1079 ± 98 kPa
- Magnetic Clutch: Electromagnetic single-plate dry clutch, 12 Volts D.C., 3.7 A current consumption
Isuzu Manual Features & Content Preview
- Official 11,000-page OEM publication (P/N RV99_02-01.E) covering 1999–2002 Isuzu UBS platforms
- Specifically details 6VE1, 6VD1, and 4JX1 powertrain configurations for both US left-hand and right-hand drive (RHD) setups
- Includes 12 dedicated climate control and electrical circuit diagrams
- Features 59 diagnostic troubleshooting flow charts to streamline shop diagnostics
- Provides factory-standard teardown references for DKV-14D, HD6, and DKS-15CH A/C compressors
System Overview and Technical Documentation
When working on the 1999–2002 Isuzu UBS platforms, having the exact factory specs makes the difference between a fast turnaround and a stalled bay. This reference manual documents essential maintenance, teardown, and diagnostic procedures for vehicle climate, heating, and cooling systems. You get the actual mechanical teardown details for the DKV-14D, HD6, and DKS-15CH compressors. That means exact rotor dimensions, vane configurations, and specific stroke measurements.
Electrical troubleshooting can be a headache without the right maps. The manual provides comprehensive wiring schematics for both LHD and RHD configurations. It clearly illustrates the integration of the heater and A/C relays, ceramic heater units, and the condenser fan circuits. Furthermore, the scheduled maintenance charts outline critical fluid replacement intervals for engine oil, automatic transmission fluid, and differential gear oil across standard and severe driving conditions.
HVAC and Electrical Reference Specifications
Need specific pressure readings or torque specs? This publication delivers the exact technical data for the refrigeration cycle, mapping out nominal pressures alongside electronic thermostat switching points. For instance, low-pressure side manifold gauge readings sit at approximately 147–294 kPa (21–43 PSI), while high-pressure side values are mapped at 1373–1863 kPa (199–270 PSI). You will also find HFC-134a refrigerant charge capacities listed at 750 g (1.65 lbs) and vital fastener specs, like the compressor shaft nut fixing torque specified at 13 Nm (113 lb-in). Working on pressurized HVAC systems and high-current electrical circuits carries inherent physical risks. Always verify your gauge readings, depressurize systems properly, and use the correct protective gear prior to beginning any diagnostic or maintenance procedures.
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