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P0202 on Cadillac Escalade-V

Injector Circuit Malfunction - Cylinder 2

Factory diagnostic protocol and troubleshooting wire for fault code P0202 specifically for the Cadillac Escalade-V (2023–2026, 6.2L Handbuilt Supercharged V8 (682HP / 653 lb-ft torque)).

Verified OEM Telemetry & Field Repair Tree
Cadillac Escalade-V2023–2026
Cadillac Escalade-V
SUV6.2L Handbuilt Supercharged V8 (682HP / 653 lb-ft torque)
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
Escalade-V SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Not Recommended
Critical urgency level
Est. Repair Cost
$150 - $550 (DIY: $40 - $180)
Parts & Labor DIY
Check P0202 On Another Cadillac Model:
Diagnose P0202 on Specific Escalade-V Model Year:

1. Symptoms of P0202 on Cadillac Escalade-V

When the Engine Control Module (ECM/PCM) on your Cadillac Escalade-V (6.2L Handbuilt Supercharged V8 (682HP / 653 lb-ft torque)) logs fault code P0202, drivers commonly observe:

Check Engine Light flashing on Cadillac Escalade-V (6.2L Handbuilt Supercharged V8 (682HP / 653 lb-ft torque))
Violent engine vibration under load on Cadillac Escalade-V (6.2L Handbuilt Supercharged V8 (682HP / 653 lb-ft torque))
Stumbling idle and severe power drop on Cadillac Escalade-V (6.2L Handbuilt Supercharged V8 (682HP / 653 lb-ft torque))
Accompanying code P0302 on Cadillac Escalade-V (6.2L Handbuilt Supercharged V8 (682HP / 653 lb-ft torque))
Cadillac Escalade-V OBD-II Port Location
The 16-pin diagnostic connector is located Driver lower dash assembly next to footwell light. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Cadillac Escalade-V

Historical warranty claims and technical repair bulletins for Cadillac Escalade-V point to the following failure distribution:

55%
Cylinder 2 fuel injector internal coil failure (Cadillac OEM Part)
25%
Broken wiring or corroded connector pin on Cylinder 2 harness (Cadillac OEM Part)
12%
Blown injector power feed fuse (Cadillac OEM Part)
8%
PCM injector driver circuit failure (Cadillac OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for Cadillac Escalade-V.

3. Step-by-Step DIY Repair Guide for Cadillac Escalade-V

01
Measure Cylinder 2 Injector Resistance

Measure resistance across injector 2 terminals. Compare to Cylinder 1 and 3 (spec: 12–16 ohms). on the Cadillac Escalade-V equipped with 6.2L Handbuilt Supercharged V8 (682HP / 653 lb-ft torque).

Required Tool: Digital Multimeter
02
Test for 12V Power and Ground Pulse

Check for 12V on power wire and verify ground pulsing using a noid light while cranking. on the Cadillac Escalade-V equipped with 6.2L Handbuilt Supercharged V8 (682HP / 653 lb-ft torque).

Required Tool: Noid Light, Multimeter
03
Replace Cylinder 2 Fuel Injector

Depressurize fuel system, lift rail, swap injector, lube new O-rings, and reinstall rail. on the Cadillac Escalade-V equipped with 6.2L Handbuilt Supercharged V8 (682HP / 653 lb-ft torque).

Required Tool: Socket Set, Fuel Line Disconnect Tool
04
Clear Codes and Verify Smooth Running

Clear DTC memory and monitor misfire counters on live data. on the Cadillac Escalade-V equipped with 6.2L Handbuilt Supercharged V8 (682HP / 653 lb-ft torque).

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

Equipment for Diagnosing Cadillac Escalade-V (P0202)

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Direct-Fit Replacement Part

Cadillac Escalade-V OEM Replacement Sensor

4.7 / 5.0 (Verified Fit)

Direct-fit replacement assembly engineered to OEM tolerances for Cadillac Escalade-V.

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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.

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Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

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

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Other Common Fault Codes on Cadillac Escalade-V

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Cadillac Escalade-V:

4. Cadillac Escalade-V P0202 FAQs

What causes code P0202 to trigger on a Cadillac Escalade-V?

On the Cadillac Escalade-V (6.2L Handbuilt Supercharged V8 (682HP / 653 lb-ft torque)), P0202 is most frequently caused by Cylinder 2 fuel injector internal coil failure or Broken wiring or corroded connector pin on Cylinder 2 harness.

Where is the OBD-II port located on my Cadillac Escalade-V?

On the Cadillac Escalade-V, the 16-pin DLC diagnostic connector is located Driver lower dash assembly next to footwell light. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Cadillac Escalade-V with code P0202?

No. Cylinder 2 is completely disabled by an electrical circuit fault, causing hard misfires. Given that P0202 carries a Critical severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.