Mitsubishi 3000GT Service Manual page 852

SERVICE. BRAKES - Anti-lock Braking System Troubleshooting
E-6 When diagnostic trouble code "52 MOTOR RELAY" is displayed
[Explanation]
The ABS ECU outputs this diagnostic trouble code
for the motor relay and motor in the following cases.
When the motor relay does not function
l
When there is trouble with the motor itself and
l
it does not revolve
When the motor ground line is disconnected
l
and the motor does not revolve
When the motor continues to revolve
l
[Hint]
If there is motor operation noise during scan tool
forced drive mode, there is a broken or short cir-
Does the motor make a noise
during scan tool forced drive
mode?
No
Remove the motor relay.
Remove the motor relay and -----+ Motor relay malfunction
check resistance values.
No. 8%No. 86: Resistance
value 72-88 Q
No. 30-No. 87: No continuity
Battery positive voltage is ap-
plied between terminals No. 85
and No. 86.
No. 30-No. 87: Continuitv
Yes
Install motor relay and remove
HU connector.
I
Connect the HU connector and
ECU connector
remove the
Is resistance between body .%-..-
connector terminal No. 2 and
No. 26: 72-88 Q?
TSB Revision
Replace motor relay.
Connect ground wire.