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P0501RAMRAM 1500 TRX HubAll RAM P0501Medium Severity

P0501 on RAM 1500 TRX

Vehicle Speed Sensor (VSS) Range/Performance

Factory diagnostic protocol and troubleshooting wire for fault code P0501 specifically for the RAM 1500 TRX (2021–2024, 6.2L Supercharged HEMI V8 (702HP / 650 lb-ft / Bilstein Black Hawk e2)).

Verified OEM Telemetry & Field Repair Tree
RAM 1500 TRX2021–2024
RAM 1500 TRX
Truck6.2L Supercharged HEMI V8 (702HP / 650 lb-ft / Bilstein Black Hawk e2)
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
1500 TRX SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Drivable (Short Trip)
Medium urgency level
Est. Repair Cost
$90 - $280 (DIY: $25 - $80)
Parts & Labor DIY
Check P0501 On Another RAM Model:
Diagnose P0501 on Specific 1500 TRX Model Year:

1. Symptoms of P0501 on RAM 1500 TRX

When the Engine Control Module (ECM/PCM) on your RAM 1500 TRX (6.2L Supercharged HEMI V8 (702HP / 650 lb-ft / Bilstein Black Hawk e2)) logs fault code P0501, drivers commonly observe:

Check Engine Light on on RAM 1500 TRX (6.2L Supercharged HEMI V8 (702HP / 650 lb-ft / Bilstein Black Hawk e2))
Speedometer needle bouncing, erratic, or not moving on RAM 1500 TRX (6.2L Supercharged HEMI V8 (702HP / 650 lb-ft / Bilstein Black Hawk e2))
Cruise control inoperative or disengaging randomly on RAM 1500 TRX (6.2L Supercharged HEMI V8 (702HP / 650 lb-ft / Bilstein Black Hawk e2))
Harsh or delayed automatic transmission shifting on RAM 1500 TRX (6.2L Supercharged HEMI V8 (702HP / 650 lb-ft / Bilstein Black Hawk e2))
RAM 1500 TRX OBD-II Port Location
The 16-pin diagnostic connector is located Driver lower dash assembly next to hood release lever. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on RAM 1500 TRX

Historical warranty claims and technical repair bulletins for RAM 1500 TRX point to the following failure distribution:

55%
Faulty Vehicle Speed Sensor (VSS) on transmission tailhousing or wheel hub (RAM OEM Part)
25%
Metal shavings coated on magnetic VSS sensor tip (RAM OEM Part)
12%
Damaged wiring harness near hot exhaust / driveshaft (RAM OEM Part)
8%
Stripped speedometer drive gear in transmission (RAM OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for RAM 1500 TRX.

3. Step-by-Step DIY Repair Guide for RAM 1500 TRX

01
Scan Vehicle Speed Live Data

Monitor VSS PID while driving. Compare scanner speed against GPS or dashboard speedometer. on the RAM 1500 TRX equipped with 6.2L Supercharged HEMI V8 (702HP / 650 lb-ft / Bilstein Black Hawk e2).

Required Tool: OBD-II Scanner
02
Inspect VSS Sensor & Clean Tip

Unbolt VSS from transmission case. Wipe off any metallic sludge from the magnetic tip. on the RAM 1500 TRX equipped with 6.2L Supercharged HEMI V8 (702HP / 650 lb-ft / Bilstein Black Hawk e2).

Required Tool: 10mm Socket, Clean Rag
03
Test VSS Sensor AC Voltage / Pulse Output

Spin sensor gear or road wheel while checking AC voltage output (should generate 0.5V–3.0V AC). on the RAM 1500 TRX equipped with 6.2L Supercharged HEMI V8 (702HP / 650 lb-ft / Bilstein Black Hawk e2).

Required Tool: Digital Multimeter (AC Volts)
04
Install New VSS Sensor

Install replacement OEM vehicle speed sensor with fresh O-ring lubricated with transmission fluid. on the RAM 1500 TRX equipped with 6.2L Supercharged HEMI V8 (702HP / 650 lb-ft / Bilstein Black Hawk e2).

Required Tool: 10mm/12mm Socket, Ratchet
05
Clear DTCs and Test Speedometer

Clear code and confirm smooth speedometer sweep and cruise control engagement. on the RAM 1500 TRX equipped with 6.2L Supercharged HEMI V8 (702HP / 650 lb-ft / Bilstein Black Hawk e2).

Required Tool: OBD-II Scanner
Recommended Parts & Testing Tools

Equipment for Diagnosing RAM 1500 TRX (P0501)

Prime Fast Delivery & Verified Fitment
Direct-Fit Replacement Part

RAM 1500 TRX OEM Replacement Sensor

4.7 / 5.0 (Verified Fit)

Direct-fit replacement assembly engineered to OEM tolerances for RAM 1500 TRX.

$45 – $95 Prime
Check Fitment on Amazon
Sensor Signal Voltage Meter

AstroAI Auto-Ranging Digital Multimeter

4.6 / 5.0 (Best Seller)

Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.

$29.99 Prime
View on Amazon
Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

Compare OEM & Aftermarket Replacement Sensors for RAM 1500 TRXVerified direct-fit pricing from Denso, Bosch, Motorcraft, and ACDelco on Amazon.
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Other Common Fault Codes on RAM 1500 TRX

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the RAM 1500 TRX:

4. RAM 1500 TRX P0501 FAQs

What causes code P0501 to trigger on a RAM 1500 TRX?

On the RAM 1500 TRX (6.2L Supercharged HEMI V8 (702HP / 650 lb-ft / Bilstein Black Hawk e2)), P0501 is most frequently caused by Faulty Vehicle Speed Sensor (VSS) on transmission tailhousing or wheel hub or Metal shavings coated on magnetic VSS sensor tip.

Where is the OBD-II port located on my RAM 1500 TRX?

On the RAM 1500 TRX, the 16-pin DLC diagnostic connector is located Driver lower dash assembly next to hood release lever. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my RAM 1500 TRX with code P0501?

Caution. Speedometer may fluctuate and automatic transmission may shift erratically. Given that P0501 carries a Medium severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.