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Home >> Lexus >> 1998 >> SC 400 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Diagnosis - A-650E >> Self-Diagnostic System >> Retrieving Diagnostic Trouble Codes >> NORMAL Mode Code Retrieval

NORMAL Mode Code Retrieval

  1. Connect scan tool to Data Link Connector (DLC) No. 3. See Fig 1. DLC No. 3 is located under left side of instrument panel. Turn ignition on with engine off. Turn scan tool on. Using scan tool manufacturer's instructions, check for DTCs and freeze-frame data.
  2. If scan tool displays UNABLE TO CONNECT TO VEHICLE, DLC No. 3 must be checked. See DLC NO. 3 INSPECTION  under SCAN TOOL PROBLEMS. If scan tool does not display UNABLE TO CONNECT TO VEHICLE, go to next step.
  3. Record any DTCs and freeze-frame data displayed for system diagnosis. If driveability problem exists and no DTCs are present, go to appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
  4. If any DTCs are present, perform appropriate circuit test in DIAGNOSTIC TESTS . See DIAGNOSTIC TROUBLE CODES IDENTIFICATION  table.
  5. After repairs for DTC have been completed, DTCs must be cleared from ECU memory. See CLEARING DIAGNOSTIC TROUBLE CODES .
DIAGNOSTIC TROUBLE CODES IDENTIFICATION

DTC (1) Probable Cause
P0500  Vehicle Speed Sensor
P0710  ATF Temperature Sensor
P0715  OD Direct Clutch Speed Sensor
P0750  No. 1 Solenoid
P0753  No. 1 Solenoid Circuit
P0755  No. 2 Solenoid
P0758  No. 2 Solenoid Circuit
P0760  No. 3 Solenoid
P0763  No. 3 Solenoid Circuit
P0768  No. 4 Solenoid Circuit
P0770  (2) Lock-Up Solenoid
P1520  Brakelight Switch Circuit
P1755  (2) Lock-Up Solenoid Circuit
P1760  SLT Solenoid Circuit
P1765  SLN Solenoid Circuit
P1780  Park/Neutral Position Switch
(1) Check listed component for probable cause. Check wiring and connections of specified component.
(2) Also called SLU solenoid.
Fig 1: Connecting Scan Tool To DLC No. 3 (Typical)
G97J06167Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002