Jeep Wrangler TJ 2005–2007 Repair Manual OEM

• 2,523 PDF pages total in the OEM publication set — a 1,679-page Service Manual; 509-page Powertrain Diagnostic Procedures; 214-page Body Diagnostic Procedures; 72-page Chassis Diagnostic Procedures; a 44-page TSB and recall file; 4 pages of service-manual front matter; and a 1-page publication menu.
• Factory coverage is for the 2005 Jeep Wrangler (TJ) only, with Service Manual Publication No. 81-370-05063 and Powertrain Diagnostic Procedures Publication No. 81-370-05042. The material covers 2.4L and 4.0L engines, standard- and long-wheelbase bodies, and Rubicon Tru-Lok systems; it is not a 2006-2007 multi-year manual.
• Engine sections cover compression and combustion-leakage testing, engine removal and installation, cylinder-head and valvetrain repair, 2.4L timing-belt service, 4.0L internal engine work, cooling-system diagnosis, fuel delivery and injection, exhaust, and EVAP service.
• Drivetrain coverage details NSG370 six-speed and 42RLE automatic transmission removal, internal disassembly and assembly, hydraulic and clutch-air pressure testing, NV231/NV241 transfer cases, clutch service, propeller shafts, and 181FBI/216FBI front and 194RBI/216RBI rear axle setup, including Tru-Lok components.
• Chassis and body procedures address suspension alignment, base brakes and Teves Mark 20i ABS, steering, frame and bumpers, full and half doors, removable tops, glass, seals, long-wheelbase body structure, and HVAC diagnosis, refrigerant service, and component replacement.
• Dedicated DRBIII diagnostic volumes trace NGC powertrain, PCI-bus communication, airbag, audio, chime, compass/temperature mirror, instrument cluster, interior lighting, Sentry Key, wheel-speed sensor, and axle-lock faults through DTC-based flowcharts, component locations, connector pinouts, verification tests, and system schematics.
• Wiring content covers bus communications, power and ground distribution, starting and charging, fuel and ignition, transmission control, airbag, ABS, lighting, audio, HVAC, splice and ground locations, plus Emissions Recall D46 and factory bulletins for Rubicon locker software, NSG370 reverse engagement and lubricant level, soft-top repair, and HVAC drain leaks.

Factory Repair and Diagnostic Depth

This set is not limited to trouble-code charts. The core service manual carries mechanical and electrical work from symptom diagnosis through removal, cleaning, inspection, adjustment, assembly, installation, and final operational checks. It supplies component-specific torque tables, fluid-capacity data, alignment specifications, pressure-test procedures, bearing preload and backlash instructions, wear and clearance limits, electrical test data, and listed special tools.

The 42RLE material goes beyond code retrieval with road tests, hydraulic pressure tests, clutch-air tests, internal clutch and oil-pump repair, solenoid and pressure-switch diagnosis, fluid and filter service, and bearing adjustment. The NSG370 section covers diagnosis, removal, complete disassembly, cleaning, inspection, assembly, installation, and required service tools. Axle chapters provide differential case, gear, bearing, seal, and setup procedures rather than treating each axle as a complete replacement unit.

NGC, PCI Bus, and Module Service

A major 2005-specific feature is the Next Generation Controller (NGC), which combines the Powertrain Control Module and Transmission Control Module functions in one module on the 2.4L and 4.0L applications. The diagnostic publication documents its four color-coded 38-way connectors, revised DTC logic, verification testing, and module-replacement procedures. DRBIII routines cover no-response conditions, driveability and starting faults, 42RLE control, vehicle-theft functions, PCI-bus communication failures, active and stored codes, Quick Learn, and post-repair verification.

Connector testing is treated as a repair issue, not a generic wiring note. The manual identifies Miller #8815 Pin Out Box and #3638 terminal removal pick for the NGC connectors; direct probing can damage terminals, the harness, or the connector and introduce an additional fault during diagnosis. The 42RLE diagnostic section also specifies Miller #8333 Transmission Simulator with the #8333-1A Electronic Transmission Adapter Kit.

Rubicon, Unlimited, Drawings, and Service Updates

Rubicon coverage includes the Tru-Lok front and rear axle-lock system, pumps, relays, switches, cluster logic, pinouts, diagnostics, and an included PCM flash bulletin addressing locker operation after an ignition cycle in 4WD Low. Unlimited-specific information appears in long-wheelbase frame, floor, wheelhouse, underbody, and Sunrider soft-top material.

Representative reference drawings include the 2.4L NGC, 4.0L NGC, 42RLE, Teves Mark 20i ABS, Axle Lock, and Instrument Cluster/Axle Locker System schematics, backed by connector, splice, ground, and component-location views. The bulletin file also covers NSG370 reverse engagement, factory-fill lubricant-level guidance, 4.0L rear-main-seal debris exposure, soft-top seam and pivot-link repair, rear lift-glass sealing, caster/camber ball-joint options, and HVAC drain leaks.

The 2.4L timing section flags another model-specific repair trap: crankshaft-sprocket installation depth controls timing-belt tracking, and incorrect positioning can damage both the belt and engine. Airbag, ABS, fuel, refrigerant, and module-programming work should be performed from the complete OEM procedures with the specified isolation, recovery, scan-tool, and test-equipment precautions.