1996–2004 Acura 3.5 RL Service Manual (P/N 61SZ305)

• 1,451 PDF pages in 855 linked files cover the 1996–2004 Acura 3.5RL (KA9) sedan with the C35A1 3.5L SOHC V6 and M5DA four-speed automatic transmission, including U.S., Canadian, and navigation-equipped configurations.
• Combines Honda factory service information built around the 1996–2001 Service Manual, P/N 61SZ305, the 2002 Service Manual Supplement, P/N 61SZ306, and 2003, 2004, and navigation updates that cross-reference the base procedures.
• Engine repair coverage includes removal and installation, timing and balancer belts, cylinder head and valve train service, engine-block inspection, lubrication testing, cooling-system diagnosis, and PGM-FI/fuel-emissions troubleshooting.
• Automatic-transmission material covers electronic and hydraulic diagnosis, solenoid and pressure testing, road and stall tests, unit removal, internal disassembly, valve-body and clutch repair, reassembly, installation, and final adjustment; differential and driveshaft service are also included.
• Chassis sections address power-steering diagnosis and overhaul, alignment and suspension repair, conventional brake service, and the year-specific ABS, TCS, and VSA systems, including bleeding, DTC diagnosis, and steering-angle-sensor neutral-position memorization.
• Electrical, HVAC, body, and restraint information covers PCM terminal charts, multiplex diagnosis, power locks and windows, the automatic-dimming mirror, OnStar and navigation, climate-control self-diagnosis and A/C service, plus SRS/OPDS fault isolation.

Coverage and Manual Structure

The files use a base-manual and supplement structure. Later updates send the technician back to common 1996–2001 procedures and supply the changed circuits, connectors, components, or diagnostics. A 2002–04 car therefore requires the base section plus its matching year supplement; the supplement is not a stand-alone repair manual.

Coverage stays specific to the KA9 sedan, C35A1 engine, and M5DA transmission. U.S. and Canadian equipment is distinguished, along with navigation and OnStar configurations where wiring or component locations changed. An early-1996 M5DA serial break separates units through 1026238 from those beginning with 1026239 for rear-cover and reassembly information.

Hood and trunk-lid removal are assigned to the separate Body Repair Manual, P/N 61SZ330, which is not part of this set. The included body sections still cover doors, glass and regulators, trim, seats, bumpers, moonroof, weatherstrips, and the frame repair chart.

Engine, Transmission, and Chassis Repair

Engine chapters cover cylinder-head and block repair, including camshaft and rocker-arm inspection, valve-guide and seat work, hydraulic-tappet bleeding, bearing selection, cylinder honing, piston and crankshaft service, oil-pressure testing, and engine-mount control diagnosis. Fuel and emissions material adds PGM-FI readiness and MIL logic, fuel-pressure and injector checks, EGR, EVAP, idle-control diagnosis, and year-specific PCM terminal arrangements.

Transmission repair runs from DTC and symptom charts through electrical/hydraulic control tests and internal work on valve bodies, clutch packs, shafts, bearings, seals, the torque converter, and cooler. Driveline coverage adds differential backlash and tooth-contact inspection, intermediate shafts, and driveshafts. Steering and suspension sections address pump and gearbox overhaul, assist testing, hubs, knuckles, control arms, dampers, wheel bearings, and alignment. ABS, TCS, and VSA information is divided by production year, with terminal charts, sensor/modulator checks, bleeding, and system-specific DTC workflows.

Electrical, HVAC, and Restraint Diagnosis

Body electrical coverage includes multiplex Mode 1/Mode 2 diagnosis, the Driver’s Position Memory System (DPMS), immobilizer, keyless-entry programming, security, HomeLink, power locks and windows, moonroof diagnosis, rear-defogger grid repair, and automatic-dimming mirror logic. OnStar spans 2002–04, with separate 2002–03 and 2004 component and test information. Navigation coverage adds the 2004 diagnostic-mode and display self-test supplement.

HVAC chapters cover self-diagnosis, sensor and actuator testing, evaporator/blower/heater-unit service, refrigerant recovery, evacuation and charging, leak and performance testing, and compressor-clutch inspection and overhaul. SRS material covers precautions, DTC retrieval and erasure, OPDS initialization, airbags, belt tensioners, the cable reel, SRS unit, and side-impact sensors.

Diagrams and Factory Data

Useful references include PGM-FI electrical-connection drawings and PCM pinout charts; automatic-transmission hydraulic-flow diagrams and symptom-to-component charts; VSA terminal arrangements and steering-angle-sensor neutral-position check/memorization charts; multiplex communication diagrams with Mode 1/Mode 2 troubleshooting; OnStar component-location and control/interface/RF-modulator terminal tables; and 2004 navigation input/output, symptom-index, and display self-test pages.

Factory data is integrated throughout: special-tool listings, component-specific torque tables, service limits, fluid capacities, hydraulic and electrical test specifications, connector views, adjustment data, and calibration or initialization requirements.

Repair Notes and Safety

The timing-belt section warns that rotating the crankshaft or camshaft pulleys with the belt removed can cause piston-to-valve contact and engine damage. During automatic-transmission reassembly, incorrect ATF pump driven-gear shaft alignment can seize the pump gears or shaft.

Because the set covers SRS circuits, refrigerant service, brake/VSA hydraulics, and live electrical diagnosis, isolate the affected system and follow the manual’s stated precautions before probing connectors or beginning disassembly.