Pinpoint Tests - OSC Equipped Vehicle

Pinpoint Tests - OSC Equipped Vehicle

Special Tool(s):

Shift Solenoid Pre-Diagnosis

Anytime an electrical connector or solenoid body is disconnected, inspect the connector for terminal condition, corrosion and contamination. Also inspect the connector seal for damage. Clean, repair or install new as necessary.

Use the following shift solenoid operation information when carrying out Pinpoint Test A.

Solenoid Operation Chart:

H = HIGH
L = LOW
H/L = PCM controlled
Manual = if equipped

Shift Solenoid Failure Mode Chart

Failed ON or OFF due to PCM and/or vehicle wiring concerns, solenoid electrically, mechanically or hydraulically stuck ON or OFF.

Solenoid Failure Mode Chart A - 5R55S:

Slip = Slip due to low line pressure
1.1 = Actual ratio with Forward Clutch, Intermediate and Overdrive Band applied.

Solenoid Failure Mode Chart B:

H = HIGH
L = LOW
Slip = Slip due to low line pressure
1.1 = Actual ratio with Forward Clutch, Intermediate and Overdrive Band applied.