P1899 Jeep Code - Park/Neutral Switch Circuit Conditions
Quick Answer
Engine cranking and Park/Neutral (P/N) indicated, or in drive with Vehicle Speed Sensor (VSS) over 50 mph, engine speed at 1985-4400 rpm, Throttle Position (TP) sensor indicating open throttle and the Powertrain Control Module (PCM) detects a Manifold Absolute Pressure (MAP) input that was over 66% of the BARO input with a high P/N input. Common causes include Faulty Park/Neutral Switch, Park/Neutral Switch harness is open or shorted, Park/Neutral Switch 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
- P1899 Jeep indicates Park/Neutral Switch Circuit Conditions.
- Common causes
- Common causes include Faulty Park/Neutral Switch, Park/Neutral Switch harness is open or shorted, Park/Neutral Switch 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 P1899 Jeep Description
What are the Possible Causes of the DTC P1899 Jeep?
- Faulty Park/Neutral Switch
- Park/Neutral Switch harness is open or shorted
- Park/Neutral Switch circuit poor electrical connection
How to Fix the DTC P1899 Jeep?
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 P1899 Jeep 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.
Need more information about the P1899 Jeep code?
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Frequently Asked Questions about P1899 Jeep Code
1. What does the OBDII code P1899 mean on a Jeep?
P1899 indicates an issue with the Park/Neutral Switch Circuit, which monitors the transmission's position to ensure the vehicle starts only in Park or Neutral.
2. What are the common symptoms of a P1899 code on a Jeep?
Symptoms may include the vehicle not starting, the engine cranking in any gear, or the Check Engine Light illuminating.
3. What causes the P1899 code to trigger on a Jeep?
Common causes include a faulty park/neutral switch, damaged wiring or connectors, or a malfunctioning Powertrain Control Module (PCM).
4. Can I still drive my Jeep if the P1899 code appears?
While the vehicle may still drive, it is not recommended due to potential safety risks, such as unintended starting in gear.
5. How is the P1899 code diagnosed on a Jeep?
A technician will typically use a scan tool to read the code, inspect the park/neutral switch, and check the wiring and connectors for damage or loose connections.
6. How do I fix the P1899 code on my Jeep?
Repairs may involve replacing the park/neutral switch, repairing or replacing damaged wiring, or reprogramming or replacing the PCM if necessary.
7. Can a faulty park/neutral switch cause other problems besides the P1899 code?
Yes, it can lead to starting issues, erratic shifting, or safety concerns if the vehicle starts in gear.
8. Is the P1899 code specific to Jeep vehicles?
No, the P1899 code can appear on other vehicles, but its cause and repair may vary slightly depending on the make and model.
9. How much does it cost to fix a P1899 code on a Jeep?
The cost can range from $100 to $300, depending on whether the issue is with the switch, wiring, or PCM.
10. Can I reset the P1899 code without repairs?
While clearing the code with an OBDII scanner may temporarily remove it, the issue may persist and cause the code to return.
Discuss the causes and fixes for P1899 Jeep OBDII Code
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I took my 2001 Liberty Jeep to have them detect a problem I was having. My Jeep would ran great and then all of sudden wouldn't start. No noise at all. Had taken it to a previous mechanic and they changed the egnition switch, a relay switch and still kept on having the same problem. So finally I took it to Dick Poe Jeep, they changed the same parts, new ? and now the cylinder and I still had the same problem so took it back they said they fixed it and now getting a code P1899???
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Did you ever try to start the engine with the shifter on "Neutral".
Since you have the P1899 code, it's possible that the problem is not the ignition switch, but the Park/Neutral Switch.
The Park/Neutral Switch can also cause a no start problem.
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