Inspection Procedure

WARNING: This page is about a different car, the 2008 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DTC OUTPUT (MULTIPLEX COMMUNICATION SYSTEM)
1. Delete the DTC (See DIAGNOSIS SYSTEM ).
2. Check for the multiplex network communication system DTCs B1210, B1214 and B1215.
  HINT:
  
  If the DTCs for the multiplex network communication system malfunction are output, inspect those DTCs first.
  
  OK:
  
  No DTC is output.
NG: GO TO MULTIPLEX COMMUNICATION SYSTEM

OK: Go to Next Step
CHECK DTC OUTPUT (AUTOMATIC TRANSMISSION SYSTEM)
1. Delete the DTCs (See DIAGNOSIS SYSTEM ).
2. Check for the automatic transmission system DTC P0705.
  OK:
  
  DTC P0705 is not output.
  
  HINT:
  
  If DTC P0705 is output, perform troubleshooting for DTC P0705 first (A760H: See DIAGNOSTIC TROUBLE CODE CHART , A960E: See DIAGNOSTIC TROUBLE CODE CHART , A760E: See DIAGNOSTIC TROUBLE CODE CHART ).
NG: GO TO AUTOMATIC TRANSMISSION SYSTEM

OK: Go to Next Step
CHECK CONNECTORS
1. Check that the connectors are securely connected and the terminals are not deformed or loose.
  OK:
  
  The connectors are securely connected and the terminals are not deformed or loose.
NG: REPAIR OR REPLACE CONNECTORS

OK: Go to Next Step

CHECK WIRE HARNESS (POWER SOURCE CONTROL ECU - BODY GROUND)

Disconnect the ECU connector.

Measure the resistance according to the value (s) in the table below.

Standard resistance

STANDARD RESISTANCE SPECIFICATION

Tester Connection (Symbols)	Condition	Specified Condition
J55-6 (GND2) - Body ground	Always	Below 1 Ω

Fig 1: Identifying Terminal GND2 Of J55 Power Source Control ECU Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to Next Step

INSPECT SHIFT LOCK CONTROL ECU

Disconnect the shift lock control ECU connector.

Measure the resistance according to the value (s) in the table below.

Standard resistance

STANDARD RESISTANCE SPECIFICATION

Tester Connection (Symbols)	Condition	Specified Condition
J48-11 (P2) - J48-8 (E)	Shift P position	Below 1 Ω
J48-11 (P2) - J48-8 (E)	Shift non-P position	10 kΩ or higher

Fig 2: Identifying J48 Shift Lock Control ECU Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE SHIFT LOCK CONTROL ECU

OK: Go to Next Step

CHECK WIRE HARNESS (POWER SOURCE CONTROL ECU - SHIFT LOCK CONTROL ECU)

Measure the resistance according to the value (s) in the table below.

Standard resistance

STANDARD RESISTANCE SPECIFICATION

Tester Connection (Symbols)	Condition	Specified Condition
J55-5 (P) - J48-11 (P2)	Always	Below 1 Ω
J55-5 (P) or J48-11 (P2) - Body ground	Always	10 kΩ or higher
J48-8 (E) - Body ground	Always	Below 1 Ω

Fig 3: Identifying J48 Shift Lock Control ECU And J55 Power Source Control ECU Connectors

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to Next Step

READ VALUE OF TECHSTREAM

Connect Techstream to the DLC3.

Turn the engine switch on (IG).

Body:

TESTER DISPLAY REFERENCE

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Shift P Signal	Shift P position/ ON or OFF	ON: Shift P position OFF: Shift non-P position	-

OK:

ON (shift P position) and OFF (shift non-P position) appear on the screen.

NG: REPLACE POWER SOURCE CONTROL ECU

OK: REPLACE ECM