Diagnosis By Symptom

Diagnosis By Symptom

Diagnosis By Symptom gives the technician diagnostic information and direction, and suggests possible components using a symptom as a starting point. All routines start out with any potential electrical components that can cause or contribute to the symptom described. The routines then list all possible hydraulic or mechanical components that can cause or contribute the symptom described.

Diagnosis by Symptom Chart Directions

1. Using Diagnosis by Symptom index, select the routine that best describes the symptom.

2. Always begin diagnosis of a symptom with:

1. preliminary inspections.

2. verifications of condition.

3. checking the fluid levels.

4. carrying out other test procedures as directed by On-Line Automotive Service Information System (OASIS) messages or the DTC Chart.

3. NOTE: Vehicles equipped with a gasoline engine, use a PCM for transmission control.

NOTE: Vehicles equipped with a diesel engine, use a Transmission Control Module (TCM) for transmission control.

NOTE: When the battery is disconnected or a new battery is installed, certain transmission operating parameters can be lost. The PCM or TCM must relearn these parameters. Perform the Solenoid Body Strategy Adaptive Drive Cycle, refer to Shift Point Road Test Initial Inspection and Diagnostic Overview.

The list contains only possible components that may cause or contribute to the concern. These components are listed in the removal sequence.

Diagnosis by Symptom Index