P1189 RAM Code - Throttle Inlet Pressure Sensor Low
Quick Answer
The Powertrain Control Module (PCM) monitors the Throttle Inlet Pressure (TIP) Sensor. Common causes include Faulty Throttle Inlet Pressure (TIP) Sensor, Throttle Inlet Pressure Sensor harness is open or shorted, Throttle Inlet Pressure Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1189 RAM indicates Throttle Inlet Pressure Sensor Low.
- Common causes
- Common causes include Faulty Throttle Inlet Pressure (TIP) Sensor, Throttle Inlet Pressure Sensor harness is open or shorted, Throttle Inlet Pressure Sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1189 RAM Description
What are the Possible Causes of the DTC P1189 RAM?
- Faulty Throttle Inlet Pressure (TIP) Sensor
- Throttle Inlet Pressure Sensor harness is open or shorted
- Throttle Inlet Pressure Sensor circuit poor electrical connection
How to Fix the DTC P1189 RAM?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1189 RAM code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1189 RAM Code
1. What does the OBDII code P1189 RAM mean?
P1189 on a RAM vehicle indicates "Throttle Inlet Pressure Sensor Low," meaning the throttle inlet pressure sensor is reporting a voltage or signal lower than expected by the engine control module (ECM).
2. What are the common symptoms of code P1189 on a RAM?
Symptoms may include poor engine performance, reduced fuel efficiency, difficulty starting, stalling, and the check engine light illuminated.
3. What causes the P1189 code to appear?
Common causes include a faulty throttle inlet pressure sensor, damaged wiring or connectors, intake leaks, or an issue with the ECM.
4. Can a dirty throttle body cause a P1189 code?
Yes, a dirty or clogged throttle body can affect air pressure readings and potentially trigger this code.
5. How do you diagnose a P1189 code on a RAM vehicle?
Diagnosis involves using an OBDII scanner to confirm the code, inspecting the throttle inlet pressure sensor and wiring for damage, checking for intake leaks, and testing the sensor's voltage and signal.
6. Is it safe to drive with a P1189 code?
Driving with a P1189 code is not recommended as it can lead to poor performance, reduced fuel economy, and potential engine damage if left unresolved.
7. How do you fix the P1189 code on a RAM?
Repairs may include replacing the throttle inlet pressure sensor, repairing damaged wiring or connectors, cleaning the throttle body, or addressing intake leaks.
8. Can a faulty ECM cause the P1189 code?
While rare, a malfunctioning ECM can misinterpret signals and trigger the P1189 code. However, this is usually diagnosed after ruling out other potential causes.
9. How much does it cost to repair a P1189 code on a RAM?
Costs vary depending on the cause, but a replacement throttle inlet pressure sensor typically costs $50–$200, plus labor if professional installation is needed.
10. Will clearing the P1189 code with a scanner fix the issue?
Clearing the code may temporarily turn off the check engine light, but the underlying issue must be resolved to prevent the code from returning.
Discuss the causes and fixes for P1189 RAM OBDII Code
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