P2135

High Severity

Throttle/Pedal Position Sensor Voltage Correlation

Fuel System

What Does P2135 Mean?

TPS sensor A and B voltages do not agree. The ECM cannot trust throttle position.

Common Fix

Replace throttle body

Estimated Cost (DIY)

$100 - $300

Symptoms

  • ⚠️Reduced power mode
  • ⚠️Limp mode
  • ⚠️Check engine light
  • ⚠️No acceleration

Related Symptoms

Check engine light on

Common Causes

Faulty TPS (inside throttle body)likely
Wiring issue to throttle bodypossible
Corroded connectorpossible

How to Diagnose P2135

  1. 1Check throttle body connector
  2. 2Compare TPS A and B readings
  3. 3Check for wiring damage
  4. 4Replace throttle body

OEM Diagnostic Flowchart

Scroll to load technician if/then branches.

Read live data and freeze frame for P2135 to pinpoint the cause before buying parts.

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Related Resources

Repair guides, symptom pages, and wiring diagrams related to P2135.

OEM Manual Evidence

Browse →
2013 GMC Truck Acadia FWD V6-3.6L A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Acadia FWD V6-3.6L Service Manual | Operation CHARM Operation CHARM : Car repair ma...

2013 GMC Truck Acadia AWD V6-3.6L A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Acadia AWD V6-3.6L Service Manual | Operation CHARM Operation CHARM : Car repair ma...

2013 GMC Truck Savana 1500 RWD V6-4.3L A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Savana 1500 RWD V6-4.3L Service Manual | Operation CHARM Operation CHARM : Car repa...

2013 Chevy Truck Traverse AWD V6-3.6L A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 2013 Chevy Truck Traverse AWD V6-3.6L Service Manual | Operation CHARM Operation CHARM : Car repai...

Related Symptoms

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Check engine light onSymptom Hub

A check-engine light is a graph entry point into code pages, symptom-specific diagnosis, and the exact repair categories most often associated with those failures.

Exact Vehicle Hubs

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2013 Chevy Truck Traverse Awd V6 3.6l Repair HubManual

Open the exact vehicle hub grounded by OEM manual evidence related to P2135.

2013 Gmc Truck Acadia Awd V6 3.6l Repair HubManual

Open the exact vehicle hub grounded by OEM manual evidence related to P2135.

2013 Gmc Truck Acadia Fwd V6 3.6l Repair HubManual

Open the exact vehicle hub grounded by OEM manual evidence related to P2135.

2013 Gmc Truck Savana 1500 Rwd V6 4.3l Repair HubManual

Open the exact vehicle hub grounded by OEM manual evidence related to P2135.

Related Codes

P0120: Throttle Position Sensor A CircuitRelated

General fault in the TPS circuit. The TPS tells the ECM how far the throttle is open.

P0220: Throttle/Pedal Position Sensor B CircuitRelated

The secondary TPS (sensor B) has a circuit fault. Modern drive-by-wire systems use two TPS for redundancy.

P2101: Throttle Actuator Control Motor Circuit Range/PerformanceRelated

The electronic throttle motor is not responding as expected.

Frequently Asked Questions

Is P2135 expensive?
Throttle body replacement is $100-$300 DIY. Often needs a relearn procedure after installation.
Can I just replace the TPS?
On most modern vehicles, the TPS is integrated into the throttle body. The whole assembly must be replaced.

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