2016 Nissan Altima Power Steering Pump Replacement? Diagnose Electric Power Steering (EPS) Instead
Step-by-step EPS troubleshooting with scan tool checks, battery voltage tests, wiring inspection, and next repair paths
2016 Nissan Altima Power Steering Pump Replacement? Diagnose Electric Power Steering (EPS) Instead
Step-by-step EPS troubleshooting with scan tool checks, battery voltage tests, wiring inspection, and next repair paths


đź”§ Altima - Power Steering Pump Replacement (Not Applicable)
Your Altima uses Electric Power Steering (EPS), which means there is no belt-driven power steering pump and no power steering fluid to replace.
Most “power steering” problems on your Altima are caused by the EPS steering gear (rack), EPS control/module, wiring, or a weak battery/charging system.
Difficulty Level: Intermediate (diagnosis) | Estimated Time: 0.5-1.0 hours
⚠️ Safety & Precautions
- ⚠️ Keep hands clear of the steering wheel while testing; EPS can assist suddenly.
- ⚠️ Support the car with jack stands if front wheels are off the ground.
- ⚠️ If disconnecting the battery, wait 3 minutes before working near airbag-related wiring.
đź”§ Required Tools
You'll need the following tools for this repair:
- OBD2 scan tool with ABS/EPS capability (specialty)
- Digital multimeter
- 10mm socket
- Ratchet
- Floor jack (rated 3-ton minimum)
- Jack stands (rated 3-ton minimum)
- Wheel chocks
- Safety glasses
- Nitrile gloves
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- No power steering pump applies to EPS system - Qty: 0
đź“‹ Before You Begin
- Park on level ground and set the parking brake.
- Center the steering wheel and turn the car OFF.
- If you’ll lift the front end, place wheel chocks at the rear wheels first.
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Confirm it’s EPS (no pump/fluid)
- Open the hood and look for a power steering fluid reservoir (a small plastic tank with a steering wheel icon). On your Altima, it won’t be there.
- Look at the accessory belt area: there will be no power steering pump pulley.
Step 2: Scan for EPS trouble codes
- Plug in an OBD2 scan tool with ABS/EPS capability (specialty) and check for EPS-related codes (often stored in ABS/VDC or EPS modules).
- Write down the exact codes and freeze-frame data.
- Tip: A generic scanner may miss EPS codes.
Step 3: Check battery voltage (common cause of heavy steering)
- Use a digital multimeter at the battery terminals.
- Engine OFF: you want roughly 12.4-12.7V. Engine running: roughly 13.5-14.8V.
- If voltage is low, EPS can reduce assist and trigger warnings.
Step 4: Quick visual check of EPS wiring/connectors
- If you need access underneath, lift with a floor jack and support with jack stands.
- Inspect visible harnesses/connectors at the steering gear area for damage or corrosion (green/white crust).
- Do not unplug connectors unless you’re ready to follow a specific repair path.
Step 5: Choose the correct repair path
- If you have an EPS warning light + stored codes, the next step is code-guided testing (power/ground checks, steering torque sensor checks, steering gear checks) using the digital multimeter and scan tool.
- If your symptom is a clunk/looseness (not heavy steering), you may be dealing with suspension/steering linkage issues, not EPS.
âś… After Repair
- Clear EPS-related codes with the OBD2 scan tool with ABS/EPS capability (specialty) and re-check after a short road test.
- Verify steering assist is normal in a parking lot (slow-speed turns both directions).
- If the steering angle sensor is involved, some repairs require calibration with a capable scan tool.
đź’° DIY vs Shop Cost
Shop Cost: $150-$450 (diagnosis) or $1,200-$2,500 (EPS steering gear replacement, parts + labor)
DIY Cost: $0-$80 (diagnosis only) or $700-$1,800 (parts only, if replacement is needed)
You Save: $150-$700+ by doing diagnosis yourself!
Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1-4 hours depending on findings.
🎯 Ready to get started?
HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.
Two quick questions so I can give you the exact correct repair steps:
- What symptom are you having: heavy steering, steering warning light, noise, or leak?
- Do you have any warning lights on the dash (EPS/SLIP/ABS), and if yes do you have the exact code(s)?

















