P0758

Shift Solenoid #2 Electrical:

Shift Solenoid #1 Electrical:

Circuit Description:

The 2nd brake solenoid is energized and de-energized by the Powertrain Control Module (PCM) in response to varying transaxle shift demands. With the 2nd brake solenoid de-energized, line pressure is applied to the 1-2 shift valve. With line pressure applied, the 1-2 shift valve operates, and the transaxle shifts from first to second gear. When the PCM energizes the 2nd brake solenoid, line pressure is relieved, and the 1-2 shift valve does not operate.


DTC Detecting Condition:

DTC P0758 will be set if the following condition is met: PCM does not see any voltage drop across 2nd brake solenoid control circuit during attempted solenoid energizing.


DTC Chart Test Description

Numbers below refer to circled numbers on the diagnostic chart.
1. Checks for proper resistance values.
2. Checks for a short to ground in ORN/GRN wire.
3. Checks for an open in ORN/GRN wire.
4. Checks the condition of the transaxle internal electrical harness for damage.
5. Checks for a short to voltage in ORN/GRN wire.
6. Checks for a poor electrical connection that may have caused DTC to set.
7. Checks for a faulty PCM.

Diagnostic Aids:

An intermittent may be caused by a poor connection, rubbed through wire insulation or a wire broken inside the insulation. Inspect the Powertrain Control Module (PCM) harness connectors for backed out terminals, improper mating, broken locks, improperly formed or damaged terminals and for poor terminal-to-wire connections.