2003 LEXUS LS430 Factory Repair Manual

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LEXUS LS430 2003  Factory Repair Manual P0977: Range check (High resistance)  
TYPICAL ENABLING CONDITIONS TABLE - P0977 
TYPICAL MALFUNCTION THRESHOLDS 
P0976: Range check (Low resistance)  
TYPICAL MALFUNCTION THRESHOLDS - P0976 
P0977: R

Page 2834 of 4500

LEXUS LS430 2003  Factory Repair Manual INSPECTION PROCEDURE 
1.INSPECT TRANSMISSION WIRE (S2) 
a. Disconnect the transmission wire connector from the transmission.  
b. Measure the resistance according to the value(s) in the table below.

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LEXUS LS430 2003  Factory Repair Manual b. Disconnect the connector from the ECM.  
c. Measure the resistance according to the value(s) in the table below. 
Fig. 141: Disconnecting Connector From ECM
 
Courtesy of TOYOTA MOTOR SALES, U.S.A.

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LEXUS LS430 2003  Factory Repair Manual b. Measure the resistance according to the value(s) in the table below. 
Standard:  
SHIFT SOLENOID VALVE (S2) - RESISTANCE TABLE 
c. Connect positive (+) lead to the terminal of solenoid connector, n

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LEXUS LS430 2003  Factory Repair Manual DTC P0979, P0980: SHIFT SOLENOID "C" CONTROL CIRCUIT LOW/HIGH (SHIFT SOLENOID 
VALVE S3) 
CIRCUIT DESCRIPTION 
Shifting from 1st to 6th is performed in combination with "ON" and "O

Page 2838 of 4500

LEXUS LS430 2003  Factory Repair Manual P0979: Range check (Low resistance)  
TYPICAL ENABLING CONDITIONS TABLE - P0979 
P0980: Range check (High resistance)  
TYPICAL ENABLING CONDITIONS TABLE - P0980 
TYPICAL MALFUNCTION THRESHOLDS 
P0979

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LEXUS LS430 2003  Factory Repair Manual Fig. 144: DTC P0979, P0980 - Wiring Diagram 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
INSPECTION PROCEDURE 
1.INSPECT TRANSMISSION WIRE (S3) 
a. Disconnect the transmission wire connector from th

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LEXUS LS430 2003  Factory Repair Manual Fig. 145: Identifying Transmission Wire Terminals 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
Standard:  
TRANSMISSION WIRE (S3) - RESISTANCE TABLE 
NG: Go to step 3  
OK: Go to next step  
2.CHECK