Shift Concerns: No 2-1 Shift (Automatic)

SHIFT CONCERNS: NO 2-1 SHIFT (AUTOMATIC) - DIAGNOSTIC ROUTINES

Possible Component	Reference/Action
229 - ELECTRICAL ROUTINE
Powertrain Control System
Electrical inputs/outputs, vehicle wiring harnesses, PCM, Shift Solenoid C (SSC) stuck on, Transmission Range (TR) sensor	Run On-Board Diagnostic (OBD). Refer to INTRODUCTION - GASOLINE MODELS for diagnosis. Go To PINPOINT TEST A and Go To PINPOINT TEST D .
329 - HYDRAULIC/MECHANICAL ROUTINE
Incorrect Pressures
Line pressure	Check pressure at line pressure tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES . See the Line Pressure Chart for specifications. If not OK, check Main Control Valve Body.
Main Control Valve Body
Bolts out of torque specification	Tighten bolts to specification.
Gaskets and separator plate - damaged, off location	Inspect for damage. Install new as required.
Intermediate regulator valve, springs, clips - loose, stuck, missing, misassembled, stuck on	Inspect for damage. Repair or install new as required.
SSC not functioning correctly, stuck on	Activate solenoid using scan tool. Refer to OUTPUT STATE CONTROL (OSC) MODE . Go To PINPOINT TEST A . Install a new solenoid body. Refer to SOLENOID BODY ASSEMBLY . Download a new solenoid body strategy into the PCM. Refer to SOLENOID BODY STRATEGY .
Intermediate Clutch Assembly - Failed On
Seals - damaged	Inspect for damage. Install new as required.
Piston - damaged	Inspect for damage. Install new as required.
Friction - damaged, worn	Inspect for damage. Install new as required.
Cylinder hub - damaged	Inspect for damage. Install new as required.
Return spring assembly - damaged	Inspect for damage. Install new as required.
Low One-Way Clutch (OWC) Assembly
Damaged - Not holding	Inspect for damage. Install new as required.
Planetary carrier
Damaged	Inspect for damage. Install new as required.