P/S Control Module Power Supply and Ground Circuit Check

Circuit Diagram

[A]:	P/S control module connector “G55” (View: [a])	1.	To continuous power supply	6.	“IG1 SIG” fuse
[B]:	P/S control module connector “G50” (View: [a])	2.	To ignition power supply	7.	P/S control module / motor assembly
A1.	P/S control module power supply circuit	3.	Main fuse box	8.	CPU
A2.	IG1 power supply circuit	4.	“P/S” fuse
A3.	P/S control module ground circuit	5.	J/B

Troubleshooting

Step	Action	Yes	No
1	Circuit fuse check 1)Check that ignition is “OFF”. 2)Disconnect “G55” and “G50” connectors. 3)Check for proper connection to “G50-3” and “G55-1” terminals. 4)If connections are OK, check “P/S” fuse and “IG1 SIG” fuse for blowing. Is check result OK?	Go to Step 2.	Replace fuse(s) and check for short to ground in circuits connected to fuse(s).
2	P/S control module power supply circuit check 1)Check voltage between “G55-1” terminal and ground. Is voltage 10 – 14 V?	Go to Step 3.	“A1” circuit is open.
3	IG1 power supply circuit check 1)Set ignition “ON”. 2)Check voltage between “G50-3” terminal and ground. Is voltage 10 – 14 V?	Go to Step 4.	“A2” circuit is open.
4	P/S control module ground circuit check 1)Set ignition “OFF”. 2)Check for proper connection to “G55-2” terminal. 3)Check resistance between “G55-2” terminal and ground. Is resistance 1 Ω or less?	End.	“A3” circuit is open or too high in resistance.