Power Source Circuit: Procedure
- CHECK HARNESS AND CONNECTOR (SLIDING ROOF CONTROL ECU ASSEMBLY - MPX-B FUSE)
- Disconnect the P54 and Q36 connectors.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition Q36-6 (ECUB) - P54-9 (E1) Always 10 to 14 V TEXT IN ILLUSTRATION*1 Front view of wire harness connector
(to Sliding Roof Control ECU Assembly)
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: Go to next step
- CHECK HARNESS AND CONNECTOR (SLIDING ROOF CONTROL ECU ASSEMBLY - ECU-IG RH FUSE)
- Disconnect the P54 and Q36 connectors.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition Q36-4 (IG) - P54-9 (E1) Engine switch on (IG) 10 to 14 V TEXT IN ILLUSTRATION*1 Front view of wire harness connector
(to Sliding Roof Control ECU Assembly)
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: Go to next step
- CHECK HARNESS AND CONNECTOR (SLIDING ROOF CONTROL ECU ASSEMBLY - BODY GROUND)
- Disconnect the P54, P55, Q36, Q35, Q34 and Q33 connectors.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*1 Front view of wire harness connector
(to Sliding Roof Control ECU Assembly)- - - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition P54-6 (E5) - Body ground Always Below 1 Ω P54-9 (E1) - Body ground Always Below 1 Ω P55-6 (E7) - Body ground Always Below 1 Ω P55-9 (E3) - Body ground Always Below 1 Ω Q36-5 (SGND) - Body ground Always Below 1 Ω Q35-4 (E8) - Body ground Always Below 1 Ω Q34-6 (E6) - Body ground Always Below 1 Ω Q34-9 (E4) - Body ground Always Below 1 Ω Q33-2 (E2) - Body ground Always Below 1 Ω
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK → REPLACE SLIDING ROOF CONTROL ECU ASSEMBLY
- Disconnect the P54, P55, Q36, Q35, Q34 and Q33 connectors.