Mazda RX-8 Workshop Manual page 3457

monitor-use batteries (normal battery).
Verify the operation of keyless entry
system using all of the transmitters (card
key).
Does the keyless entry system operate
properly?
14 Inspect for the keyless receiver
installation.
Is the bracket securely installed on the
keyless receiver?
15 Inspect the ground wire on the keyless
receiver bracket.
Is the ground wire tighten on the bracket?
16 Turn the ignition switch to the LOCK
position.
Measure the voltage at keyless receiver
terminal A?
Is the voltage B+?
17 Measure the voltage at keyless receiver
terminal E?
Is the voltage 0 V?
18 Disconnect the keyless receiver connector
(6-pin) and keyless control module
connector (52-pin).
Is there continuity between the following
terminals?
19 Measure the signal wave pattern of
keyless control module terminal 3C using
an oscilloscope while the transmitter (card
key) is operated with the auxiliary key
removed from the ignition key cylinder.
Keyless receiver
connector terminal A—
keyless control module
connector terminal 3A
Keyless receiver
connector terminal C—
keyless control module
connector terminal 3C
Keyless receiver
connector terminal E—
GND
No Go to the next step.
YesGo to the next step.
No Install the bracket securely, and then go to the next step.
YesGo to the next step.
No Tighten the ground wire, then go to the next step.
YesGo to the next step.
No Inspect and repair the wiring harness between
the keyless control module and the keyless
receiver as necessary.
Then go to Step 27.
YesGo to the next step.
No Inspect and repair the wiring harness between
the ground wire and the keyless receiver as
necessary.
Re-tighten the ground wire as necessary.
Then go to Step 27.
YesGo to the next step.
No Inspect and repair the wiring harness between
the keyless control module and the keyless
receiver, then go to Step 27.
YesGo to the next step.
No Replace the keyless receiver, and then go to Step 27.