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Real features. Real diagnostics. No fluff. See exactly how Wrench helps technicians diagnose faster and smarter.

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AI Diagnosis

Live AI Diagnosis Chat

Conversational diagnostics powered by AI that understands your vehicle and tells you exactly what's wrong.

Smart Diagnosis, Real Results

Skip the guesswork. Wrench analyzes your symptoms, correlates live data, and gives you ranked probable causes with confidence levels.

  • Analyzes symptoms + live OBD data together
  • Ranks causes by real-world likelihood
  • Shows confidence levels (POSSIBLE → LIKELY → CONFIRMED)
  • Auto-switches to relevant PIDs during capture
  • References TSBs and common fixes
  • Explains in plain English what's happening
Try AI Diagnosis
🔧
AI Diagnosis Session
2015 Ford F-150 5.0L — analyzing P0300...
2015 Ford F150 5.0L, rough idle and P0300 random misfire. Already replaced spark plugs, no change.
Starting capture on Engine Basics + Fuel Trims...
📡 Auto-switching to diagnostic PIDs
⏱ Capture: 45.2s | 89 samples | 2.0/sec
📊 CAPTURE ANALYSIS:
RPM: 680-720 (unstable, ±40 fluctuation)
STFT B1: +12.4% → +18.7% (climbing)
STFT B2: +2.1% → +3.5% (normal)
LTFT B1: +14.2% (high — running lean Bank 1)
LTFT B2: +1.8% (normal)
MAF: 4.2 g/s (low for 5.0L at idle)
⚠️ LIKELY: Vacuum leak — Bank 1 side

Evidence:
• Bank 1 fuel trims significantly higher than Bank 2
• Short term climbing = active compensation
• Long term already adapted +14% = chronic issue
• Random misfire P0300 from lean condition

Next steps:
1. Smoke test Bank 1 intake manifold
2. Check Bank 1 injector O-rings
3. Inspect PCV valve and hose

Confidence: ⚠️ LIKELY (82%)
What about the MAF being low?
Good catch. MAF at 4.2 g/s is low for a 5.0L (should be 6-8 g/s at idle). But since only Bank 1 trims are affected, a bad MAF would show both banks lean equally. The asymmetry confirms a vacuum leak on Bank 1 specifically.
OBD Scanner

8-Module Vehicle Topology

See every module at a glance. Visual topology shows exactly where codes are hiding.

🚗
🟢 Connected to 2019 Chevy Silverado 1500
VIN: 1GCUYDED5KZ123456 | Engine: 5.3L V8 EcoTec3 | Trans: 8-Speed Automatic
✅
PCM
0 codes
⚠️
TCM
2 codes
✅
ABS
0 codes
✅
BCM
0 codes
⚠️
SRS
1 code
✅
IPC
0 codes
✅
HVAC
0 codes
✅
TPMS
0 codes
3 codes found across 2 modules
Tap any module for details

Every Module, Every Code

No more guessing which modules to check. Wrench scans all 8 major vehicle systems and shows you exactly what's throwing codes.

  • PCM — Powertrain Control Module
  • TCM — Transmission Control Module
  • ABS — Anti-lock Brake System
  • BCM — Body Control Module
  • SRS — Supplemental Restraint System
  • IPC — Instrument Panel Cluster
  • HVAC — Climate Control
  • TPMS — Tire Pressure Monitoring
Scan Your Vehicle
Live Data

Real-Time PID Monitoring

Stream live sensor data with trend indicators and automatic alerts when values go critical.

Every Sensor, Live Updates

Watch your vehicle's vital signs in real-time. Color-coded cards show normal, watch, and critical values instantly.

  • Real-time streaming at 2+ samples/second
  • Trend arrows show rising/stable/falling values
  • Auto-alerts when parameters go critical
  • Record sessions for later analysis
  • Tap any PID for detailed trend graphs
  • Export data for warranty claims
Start Live Data
RECORDING — 34.5s | 67 samples
RPM
2,450
↑ Rising
Coolant Temp
198°F
→ Stable
Engine Load
67%
↑ Rising
MAF
24.8 g/s
↑ Rising
STFT B1
+3.2%
→ Stable
STFT B2
+1.8%
→ Stable
LTFT B1
+2.1%
→ Stable
LTFT B2
-0.5%
→ Stable
Timing Adv
22.5°
↑ Rising
Knock Retard
0°
✓ Good
Throttle
45%
↑ Rising
Intake Temp
85°F
→ Stable
Legend: Green = Normal • Yellow = Watch • Red = Critical
Voice Control

Hands-Free Diagnostics

Full voice control for greasy hands. Talk to Wrench, get spoken results. Built for the bay, not the boardroom.

🎙️ Listening...
👤 You said:
"What's wrong with this car? It's running rough and the check engine light is on"
🔧 Wrench responds:
"I see you're connected to a 2018 Toyota Camry 2.5L. Let me scan for codes first..."
System: Scanning all modules...
Found: P0171 — System Too Lean Bank 1
🔧 Wrench explains:
"Found one code — P0171, system too lean on Bank 1. This usually means a vacuum leak, weak fuel pump, or dirty MAF sensor. Want me to capture some live data to narrow it down?"
👤 You said:
"Yeah, do it"
🔊 Speaking response...

Designed for Greasy Hands

No more wiping your hands to use the screen. Just put in earbuds and talk to Wrench like you would a master tech standing next to you.

  • Full speech recognition (powered by Whisper AI)
  • Natural language processing for diagnostic descriptions
  • Spoken responses with technical details
  • Works with any Bluetooth headphones/earbuds
  • Hands-free during live data capture
  • Voice commands for scanning and PID selection
Try Voice Mode
Photo Analysis

AI-Powered Photo Recognition

Snap a photo of scan tool screens, parts, or damage. AI reads everything and gives instant analysis.

Your Eyes + AI Brain

Stop squinting at tiny scan tool screens. Snap a photo and let AI read the codes, analyze the data, and explain what it means.

  • Reads codes from any scan tool screen
  • Identifies parts, connectors, and components
  • Spots damage, corrosion, and wear patterns
  • Reads VIN plates (dashboard, door jamb, documents)
  • Analyzes wiring harnesses and connections
  • Instant OCR for technical documents
Upload Photo
📸
Photo received — analyzing...
(Scan tool screen detected)
🔧 Analysis Results:
I can see the following codes on your scan tool screen:
P0456 EVAP Small Leak
P0442 EVAP Medium Leak
P0455 EVAP Large Leak
Multiple EVAP codes together usually mean:
⚠️ LIKELY: Gas cap loose or failing seal
Quick check: Remove gas cap, inspect the rubber seal for cracks. Reinstall and tighten until you hear 3 clicks. Clear codes and drive 50 miles.

If codes return → smoke test the EVAP system

Ready to Transform Your Diagnostics?

Join the beta and experience the future of automotive diagnosis. Free during beta, powerful forever.

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