Mazda RX-8 Workshop Manual page 2392

Is there continuity?
INSPECT WIRING HARNESS FOR
5 CONTINUITY BETWEEN EPS CONTROL
MODULE AND DLC-2
Disconnect the EPS control
module connector.
Inspect for continuity
between the EPS control
module and the DLC-2 at
the following terminals.
Is there continuity?
INSPECT VOLTAGE AT EPS CONTROL
6
MODULE
Measure the voltage at EPS
control module connector
terminal 2P (13-pin, IG1
signal).
Is the voltage within the
following range?
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Terminal
2K (13-
pin) and
terminal
1L (12-
pin)
Terminal
2M (13-
pin) and
CAN_H
terminal
(16-pin)
Terminal
2K (13-
pin) and
CAN_L
terminal
(16-pin)
IG ON: 10
—16 V
YesGo to the next step.
No Repair the wiring harness between the EPS control
module and the DLC-2, then repeat from Step 1 if the
malfunction.
YesInspect the EPS control module connectors, then
repeat from Step 1 if the malfunction recurs. If the
same symptoms recur, replace the EPS control
module.
(See EPS CONTROL MODULE
REMOVAL/INSTALLATION.)
No Inspect the battery. If the battery condition is normal,
inspect and repair the EPS control module wiring
harness (IG1 signal). Reinspect the malfunction
symptoms.
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