OBD Guide

P1161

Intake Air Temperature Sensor Open/Short To Positive

P1161 is an OBD-II diagnostic trouble code meaning: Intake Air Temperature Sensor Open/Short To Positive. Common causes: open circuit in iat sensor, short circuit to positive in the sensor circuit. Estimated repair cost: $9–28.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$9–28 (est.)

Symptoms

  • Unstable engine operation at idle
  • Increased fuel consumption
  • Reduced engine power
  • Check Engine Light Illuminates
  • Cold start problems

Causes

  • Open circuit in IAT sensor
  • Short circuit to positive in the sensor circuit
  • Malfunction of the intake air temperature sensor itself
  • Wiring harness damage
  • Poor contact in the sensor connector

How to Fix

  1. Check the integrity of the wires to the IAT sensor
  2. Check sensor resistance and compare with factory specifications
  3. Inspect the sensor connector for corrosion or damage.
  4. Replace the intake air temperature sensor if necessary

Related codes

Error P1161 by Vehicle Brand

FAQ

What does the P1161 code mean?

P1161 is an OBD-II diagnostic trouble code that indicates: Intake Air Temperature Sensor Open/Short To Positive

What causes a P1161 error code?

The most common causes of P1161 include: Open circuit in IAT sensor; Short circuit to positive in the sensor circuit; Malfunction of the intake air temperature sensor itself; Wiring harness damage.

How do I fix a P1161 diagnostic trouble code?

To fix P1161: Check the integrity of the wires to the IAT sensor. Check sensor resistance and compare with factory specifications. Inspect the sensor connector for corrosion or damage.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1161?

Yes, but get it checked soon

How much does it cost to fix P1161?

The estimated repair cost for P1161 is $9–28. Actual cost depends on your vehicle, location, and labor rates.

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