ECU Power Source Circuit

CONVERTIBLE: CONVERTIBLE ROOF CONTROL SYSTEM: ECU Power Source Circuit

ECU Power Source Circuit

DESCRIPTION

This circuit supplies power to the convertible roof control ECU.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT FUSE (ECU-IG, PWR, AM1, TSK)
(a) Remove the ECU-IG, PWR and AM1 fuses from the instrument panel J/B.
(b) Remove the TSK fuses from the engine room J/B.
(c) Measure the resistance of the fuses.
Resistance:
Below 1 Ohms
NG -- REPLACE FUSE
OK -- Continue to next step.
2. INSPECT RELAY (IG1, PWR)





(a) Remove the IG1 and PWR relays from the instrument panel J/B.
(b) Measure the resistance of the relays.
Resistance:





NG -- REPLACE RELAY
OK -- Continue to next step.
3. CHECK WIRE HARNESS (INSTRUMENT PANEL J/B - BODY GROUND)





(a) Disconnect the 2F J/B connector.
(b) Measure the resistance of the wire harness side connector.
Resistance:





NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.
4. CHECK WIRE HARNESS (COVERTIBLE ROOF CONTROL ECU - BATTERY AND BODY GROUND)
(a) Disconnect the C17, C18 and C19 ECU connectors.





(b) Measure the voltage and resistance of the wire harness side connectors.
Standard:





NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- REPLACE CONVERTIBLE ROOF CONTROL ECU