Yes
GO to A4.
No
GO to A5.
A4 OSC TRANS-DRIVE MODE (GEAR OR TCC)
Carry out OSC Transmission Drive Mode.
Select GEAR for shift solenoids or follow procedures for GEAR as listed in this section.
Select TCC for Torque Converter Clutch Solenoid. Follow procedures of TCC in Drive Mode
as listed in this section.
Does the transmission upshift and downshift or torque converter engage/disengage
when commanded?
Yes
CLEAR all DTCs. ROAD TEST to verify if concern is still present. If concern is still present,
REFER to Diagnosis By Symptom in this section to diagnose shift or torque converter concern.
No
GO to A5.
A5 CHECK FOR BATTERY VOLTAGE
Transmission Vehicle Harness Connector
Visually inspect all wires and connectors for damage.
Measure the voltage on pin 1 harness side and ground.
Is the voltage greater than 10 volts?
Yes
GO to A6.
No
REPAIR the circuit. TEST for normal operation.
A6 ELECTRICAL SIGNAL CHECK
Leave positive lead connected to pin 1and connect negative lead to pins 2, 3, 4 and 5.
Trans-Bench Mode
Select Parameter SSA, SSB, SSC, CCS or TCC.
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