For 1990-2009 cars only
Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
DTC Descriptor
DTC P280A: Transmission Range (TR) Switch Circuit Not LearnedCircuit/System Description
This diagnostic addresses if the Gear Selector Neutral Position has not been learned.
Conditions for Running the DTC
Not in Service Mode
Conditions for Setting the DTC
Gear Selector Neutral Position has not been learned
Action Taken When the DTC Sets
| • | DTC P280A is a Type A DTC |
| • | Disable engine start |
Conditions for Clearing the DTC
DTC P280A is a Type A DTC
Diagnostic Aids
Improper shift cable adjustment may cause DTC P280A to set. Refer to the Shift Control Cable Adjustment procedure.
Reference Information
Schematic Reference
Automatic Transmission Controls Schematics
Connector End View Reference
Electrical Information Reference
DTC Type Reference
Scan Tool Reference
Control Module References for scan information.
Circuit/System Verification
- Ignition ON, observe the DTC information with a scan tool.
- Record Freeze Frame and Failure Records.
- Clear DTCs.
- Operate the vehicle under the conditions observed in the Failure Records.
- Observe the DTC information with the scan tool. Verify that the DTC does not set.
| ⇒ | If DTC P280A is set, perform the Transmission Adaptive Learn and Transmission Neutral Learn procedure. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
