P1102 – OBD-II DTC

OBD-II DTC P1102 – 1-4 Upshift (Skip Shift) Solenoid Control Circuit Malfunction

DTC P1102 meaning

DTC P1102 refers to a malfunction in the 1-4 upshift (skip shift) solenoid control circuit. This code indicates that the vehicle’s powertrain control module (PCM) has detected an issue with the solenoid responsible for controlling the skip shift feature, which is designed to improve fuel efficiency by preventing unnecessary gear shifts under certain conditions.

DTC P1102 symptoms

Common symptoms associated with DTC P1102 may include:

• Illuminated check engine light
• Difficulty shifting gears
• Unusual engine performance
• Reduced fuel efficiency
• Transmission slipping or harsh shifting

DTC P1102 causes

Several factors can lead to the triggering of DTC P1102, including:

• Faulty skip shift solenoid
• Wiring issues or damaged connectors in the solenoid circuit
• Faulty PCM or software issues
• Low transmission fluid levels or contamination
• Mechanical issues within the transmission

DTC P1102 seriousness

DTC P1102 can be considered moderately serious. While it may not cause immediate catastrophic failure, it can lead to poor vehicle performance, increased emissions, and potential long-term damage to the transmission if not addressed. It is advisable to diagnose and repair the issue promptly to maintain optimal vehicle operation.

How to diagnose DTC P1102

To diagnose DTC P1102, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the P1102 code.
2. Inspect the wiring and connectors related to the skip shift solenoid for damage or corrosion.
3. Check the operation of the skip shift solenoid using a multimeter to ensure it is functioning correctly.
4. Examine the transmission fluid level and condition, replacing it if necessary.
5. Perform a visual inspection of the transmission for any mechanical issues.
6. Clear the code and take the vehicle for a test drive to see if the code reappears.

How to fix DTC P1102 step-by-step instructions

To fix DTC P1102, follow these steps:

1. Inspect and repair any damaged wiring or connectors in the skip shift solenoid circuit.
2. If the skip shift solenoid is faulty, replace it with a new one.
3. Ensure the transmission fluid is at the correct level and in good condition replace if necessary.
4. Check for any software updates for the PCM and reprogram if needed.
5. After repairs, clear the DTC using an OBD-II scanner.
6. Test drive the vehicle to ensure the issue is resolved and the code does not return.

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