The P0953: Auto Shift Manual Control Circuit High refers to an issue where the auto shift manual control circuit is receiving higher than expected voltage. This can lead to improper manual shifting and affect transmission performance.
P0953 – Quick Overview
| Code | Information |
|---|---|
| Meaning | P0953: Auto Shift Manual Control Circuit High |
| Is it serious? | Yes, high voltage can damage the control module and affect manual shifting. |
| Possible causes | – High voltage in the auto shift manual control circuit – Faulty auto shift manual control module – Wiring or connector issues |
| How to diagnose? | – Check the circuit for high voltage – Inspect wiring and connectors – Replace the auto shift manual control module if necessary |
P0953 Meaning
The P0953: Auto Shift Manual Control Circuit High code indicates that the voltage in the auto shift manual control circuit is above the expected range. This can cause the control module to malfunction, leading to improper manual shifting and possible damage to the transmission system.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to check for any additional fault codes that may provide more insight into the high voltage issue. | OBD-II Scanner |
| Test for High Voltage | Use a multimeter to test for high voltage in the auto shift manual control circuit. Compare the voltage readings to the manufacturer’s specifications. | Multimeter |
| Inspect Wiring and Connectors | Inspect the wiring and connectors for damage, corrosion, or loose connections that could be causing the high voltage. | Flashlight, Multimeter |
| Check the Control Module | Test the auto shift manual control module for proper functionality. Replace the module if it is faulty or receiving excessive voltage. | Diagnostic Tool, Replacement Control Module |
| Clear the Code and Test Drive | After repairs, clear the code using an OBD-II scanner and take the vehicle for a test drive to ensure the issue is resolved. | OBD-II Scanner, Vehicle Owner’s Manual |
| Recheck for Codes | Re-scan the system to ensure the P0953 code does not return after the test drive. | OBD-II Scanner |
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