Automatic Transmission Diagnostic Procedures

• Introduction
  • Notes
  • System Coverage
  • Six-Step Troubleshooting Procedure
• Identification Of System
• System Description And Functional Operation
  • General Description
  • Functional Operation
    • Notes
    • AUTOSTICK Feature (If Equipped)
    • Transmission Operation And Shift Scheduling At Various Oil Temperatures
  • Diagnostic Trouble Codes
    • Notes
    • Hard Code
    • One Trip Failures
    • Intermittent Code
    • Starts Since Set Counter
    • Trouble Code Erasure
    • EATX DTC Event Data
    • List Of Diagnostic Trouble Codes & Descriptions
    • DTC Descriptions
      • Notes
      • Monitor Conditions - P0613
      • Set Conditions - P0613
      • Monitor Conditions - P1684
      • Set Conditions - P1684
      • Monitor Conditions - P0891
      • Set Conditions - P0891
      • Monitor Conditions - P0888
      • Set Conditions - P0888
      • Monitor Conditions - P0725
      • Set Conditions - P0725
      • Monitor Conditions - P1694
      • Set Conditions - P1694
      • Monitor Conditions - P0890
      • Set Conditions - P0890
      • Monitor Conditions - P0871
      • Set Conditions - P0871
      • Monitor Conditions - P0846
      • Set Conditions - P0846
      • Monitor Conditions - P0841
      • Set Conditions - P0841
      • Monitor Conditions - P0706
      • Set Conditions - P0706
      • Monitor Conditions - P0122, P0123, P0124
      • Set Conditions - P0122, P0123, P0124
      • Monitor Conditions - P0845, P0870, P0992
      • Set Conditions - P0845, P0870, P0992
      • Monitor Conditions - P0944
      • Set Conditions - P0944
      • Monitor Conditions - P1790
      • Set Conditions - P1790
      • Monitor Conditions - P1775
      • Set Conditions - P1775
      • Monitor Conditions - P0740
      • Set Conditions - P0740
      • Monitor Conditions - P0750, P0755, P0760, P0765
      • Set Conditions - P0750, P0755, P0760, P0765
      • Monitor Conditions - P1776
      • Set Conditions - P1776
      • Monitor Conditions - P0715, P0720, P0731, P0732, P0733, P0734, P0736, P1794
      • Set Conditions - P0715, P0720, P0731, P0732, P0733, P0734, P1794
      • Monitor Conditions - P0952
      • Set Conditions - P0952
      • Monitor Conditions - P1797
      • Set Conditions - P1797
      • Monitor Conditions - P0897
      • Set Conditions - P0897
      • Monitor Conditions - P0218
      • Set Conditions - P0218
      • Monitor Conditions - P0884
      • Set Conditions - P0884
      • Monitor Conditions - P1687
      • Set Conditions - P1687
      • Monitor Conditions - P1652
      • Set Conditions - P1652
      • Monitor Conditions - P0562
      • Set Conditions - P0562
      • Monitor Conditions - P0711
      • Set Conditions - P0711
      • Monitor Conditions - P0712
      • Set Conditions - P0712
      • Monitor Conditions - P0713
      • Set Conditions - P0713
      • Monitor Conditions - P0714
      • Set Conditions - P0714
    • Quick Learn
    • Clutch Volumes
    • Electronic Pinion Factor (If Applicable)
  • Using The DRBIII®
  • DRBIII® Error Messages
    • Notes
    • DRBIII® Does Not Power Up (Blank Screen)
    • 3.5.2 Display Is Not Visible
    • 3.5.3 Some Display Items Read "-"
  • Transmission Simulator (Miller Tool #8333) And Electronic Transmission Adapter Kit (Miller Tool #8333-1 A)
• Disclaimers, Safety, And Warnings
  • Disclaimers
  • Safety
    • Technician Safety Information
    • Vehicle Preparation For Testing
    • Servicing Sub-Assemblies
    • DRBIII® Safety Information
  • Warnings
    • Vehicle Damage Warnings
    • Road Test Complaint Vehicle
    • Electronic Pinion Factor Warnings (If Applicable)
    • Bulletins And Recalls
• Required Tools And Equipment
• Glossary Of Terms
  • Acronyms
  • Definitions
• Diagnostic Information And Procedures
  • Communication - Symptoms
    • Symptom: *NO RESPONSE FROM TRANSMISSION CONTROL MODULE
      • Possible Causes
      • Diagnostic Procedure
  • Transmission - NGC - Symptoms
    • Symptom: *BACKUP LAMPS COME ON WHILE SHIFTER IS NOT IN REVERSE POSITION
      • Possible Causes
      • Diagnostic Procedure
    • Symptom: *BACKUP LAMPS INOPERATIVE
      • Possible Causes
      • Diagnostic Procedure
    • Symptom: *CHECKING PARK/NEUTRAL SWITCH OPERATION
      • Possible Causes
      • Diagnostic Procedure
    • Symptom: *NO MANUAL AUTOSTICK OPERATION
      • Possible Causes
      • Diagnostic Procedure
    • Symptom: *PRNDL FAULT CLEARING PROCEDURE
      • Possible Causes
      • Diagnostic Procedure
    • Symptom: *TRANSMISSION NOISY WITH NO DTC'S PRESENT
      • Possible Causes
      • Diagnostic Procedure
    • Symptom: *TRANSMISSION SHIFTS EARLY WITH NO DTC'S
      • Possible Causes
      • Diagnostic Procedure
    • Symptom: *TRANSMISSION SIMULATOR 8333 WILL NOT POWER UP
      • Possible Causes
      • Diagnostic Procedure
  • Transmission - NGC - Diagnostic Tests
    • DTC P0122: Throttle Position Sensor/Apps Low
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0123: Throttle Position Sensor/Apps High
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0124: Throttle Position Sensor/Apps Intermittent
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0218: High Temperature Operation Activated
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0562: Low Battery Voltage
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0604: Internal TCM, DTC P0605: Internal TCM, DTC P0613: Internal TCM
      • Notes
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0706: Check Shifter Signal
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0711: Transmission Temperature Sensor Performance
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0712: Transmission Temperature Sensor Low
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0713: Transmission Temperature Sensor High
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0714: Transmission Temperature Sensor Intermittent
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0715: Input Speed Sensor Error
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0720: Output Speed Sensor Error
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0725: Engine Speed Sensor Circuit
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0731: Gear Ratio Error In 1ST
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0732: Gear Ratio Error In 2ND
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0733: Gear Ratio Error In 3RD
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0734: Gear Ratio Error In 4TH
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0736: Gear Ratio Error In Reverse
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0740: Torque Converter Clutch Control Circuit
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0750: LR Solenoid Circuit
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0755: 2/4 Solenoid Circuit
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0760: Od Solenoid Circuit
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0765: UD Solenoid Circuit
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0841: LR Pressure Switch Sense Circuit
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0845: 2/4 Hydraulic Pressure Test Failure
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0846: 2/4 Pressure Switch Sense Circuit
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0870: Od Hydraulic Pressure Test Failure
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0871: Od Pressure Switch Sense Circuit
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0884: Power Up At Speed
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0888: Relay Output Always Off
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0890: Switched Battery
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0891: Transmission RLY Always On
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0897: Worn Out/Burnt Transaxle Fluid
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0944: Loss Of Prime
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0952: AUTOSTICK Input Circuit Low
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P0992: 2-4/Od Hydraulic Pressure Test Failure
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P1652: Serial Communication Link Malfunction
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P1684: Battery Was Disconnected
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P1687: No Communication With The Mic
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P1694: Bus Communication With Engine Module
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P1775: Solenoid Switch Valve Latched In TCC Position
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P1776: Solenoid Switch Valve Latched In LR Position
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P1790: Fault Immediately After Shift
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P1793: TRD Link Communication Error
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P1794: Speed Sensor Ground Error
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
    • DTC P1797: Manual Shift Overheat
      • When Monitored and Set Condition:
      • Possible Causes
      • Diagnostic Procedure
  • Verification Tests
• Component Locations
  • AUTOSTICK - If Equipped
  • Powertrain Control Module
  • Pressure Port
  • Transmission Component Locations
• Connector PINOUTS
• Schematic Diagrams
  • Circuit Schematic
• Charts And Graphs
  • Transmission Range Sensor States
  • Pressure Switch States
  • Solenoid Application Chart
  • Shift Lever Error Codes
  • Transmission Temperature Sensor