OBD code P0884 indicates a problem with the Transmission Control Module (TCM) power input signal.
This affects the TCM’s ability to function properly.
Symptoms include the Engine Light being illuminated.
Causes may include issues with TCM power or ground connections, a faulty TCM, or wiring harness problems.
This issue should be addressed promptly to prevent transmission issues.
A possible fix involves inspecting and repairing any damaged wiring or connectors related to the TCM.
Repair Importance Level | 10.0 (Out of 10) |
Estimated Repair Time | Approximately 1.0 hour |
Repair Difficulty Level | 10.0 (Out of 10) |
Symptoms of the p0884 OBD Code
The vehicle may experience issues with the powerup at speed control module communication circuit.
- Symptoms: Engine Light ON.
- Possible harsh shifting from the transmission.
- Vehicle may go into limp mode.
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Causes of the p0884 OBD Code
Possible reasons for fault code P0884 include issues with the powerup at speed control switch circuit.
- P0884 can be caused by a faulty Transmission Control Module (TCM) Power connection.
- A faulty Transmission Control Module (TCM) Ground connection.
- A faulty Transmission Control Module (TCM).
- An open or shorted Transmission Control Module (TCM) harness.
- Or a poor electrical connection in the Transmission Control Module (TCM) circuit.
Fixing Error Code p0884 Step By Step
Inspect the transmission control module power input circuit for fault code P0884.
- To fix OBDII code P0884, first, review the possible causes related to the transmission control module (TCM) power input signal.
- Visually inspect the wiring harness and connectors for any damage.
- Check the connector pins for signs of being broken, bent, pushed out, or corroded.
- Repair or replace any damaged components found during the inspection.
- Clear the fault codes and perform a test drive to verify that the issue has been resolved.
- If the problem persists, consider resetting the TCM or updating its software as necessary.
Cost Of Fixing p0884 Fault Code
Diagnosing and repairing fault code P0884 typically involves inspecting and testing the transmission control module.
The cost to diagnose and fix OBD code P0884 typically ranges from $75 to $150, with an estimated repair time of 1. 0 hour.
Costs depend on shop rates, complexity of the issue, and any additional parts or labor needed for the repair.
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Details of the p0884 OBD Code
P0884 indicates a communication error between the transmission control module and the powertrain control module.
OBD code P0884 means a transmission control module (TCM) power input signal intermittent.
This code is triggered by the TCM when it detects an intermittent voltage signal from the power input circuit.
The power input circuit provides the necessary voltage for the TCM to operate properly.
When the TCM detects fluctuations or interruptions in this voltage signal, it will set the P0884 trouble code.
This code is specific to transmission control module power input issues and should be diagnosed and repaired accordingly.
Mechanic’s Tech Notes
Code P0884 relates to the transmission control module (TCM) communication circuit, indicating a communication error.
OBDII code P0884 relates to the transmission control module (TCM) power input signal being too low.
To diagnose, use a voltmeter to check TCM power and ground circuits for proper voltage levels.
Utilize a scan tool to confirm TCM communication over the Controller Area Network (CAN) bus.
Visually inspect wiring harnesses and connectors for any damage, and ensure connector pins are not broken, bent, or corroded.
If all checks out, consider reprogramming the TCM.
FAQ
OBD code P0884 indicates a Transmission Control Module (TCM) power and/or ground connection issue. Check TCM wiring harness, connectors, and components for damage or corrosion.
Common symptoms of OBD code P0884 include Engine Light ON, caused by issues with TCM power/ground, faulty TCM, open/shorted harness, or poor electrical connection. Fix involves inspecting wiring/connectors.
Diagnose and fix OBD code P0884 by checking TCM power/ground, harness, and connections for faults. Inspect wiring for damage, broken pins, or corrosion.

Wrap Up
If your transmission control module detects OBDII code P0884, you may experience issues with the transmission shifting erratically, stalling, or going into limp mode.
This code typically indicates a communication error between the TCM and the powertrain control module (PCM) due to faulty wiring, a damaged transmission control relay, or a malfunctioning TCM.
To address OBDII code P0884, start by inspecting the wiring harness between the TCM and PCM for any signs of damage or corrosion.
Check the transmission control relay for proper operation and replace if necessary.
Additionally, ensure all