Mazda RX8 - Page 33

Does the security light
illuminate?
No
Inspect the instrument cluster and the
following wiring harnesses.
• Between PCM terminal 4V and
instrument cluster terminal 1J
• Between PCM terminal 4S and
instrument cluster terminal 1L
Yes
Go to the applicable DTC inspection.
(See DTC TABLE (IMMOBILIZER
SYSTEM) .)
(See DTC TABLE [MULTIPLEX
COMMUNICATION SYSTEM] .)
5
Connect the WDS or equivalent
to the DLC-2 and retrieve the
DTC.
Are any of the following DTCs
displayed?
DTC
o B1213, B1341, B1600,
B1601, B1602, B1681,
B2103, B2139, B2431,
U1147, U2510
No Go to the next step.
Yes
Repair or replace the wiring harnesses and
connectors.
6
Inspect the following wiring
harnesses and connectors for an
open or short circuit:
• Between coil terminal A
and keyless control
module terminal 3F
• Between coil terminal B
and keyless control
module terminal 3E
Are there any malfunctions?
No Go to the next step.
Yes
Repair or replace the wiring harnesses and
connectors.
7
Inspect the following wiring
harnesses and connectors for an
open or short circuit:
• Between keyless control
module terminal 3A and
PCM terminal 4V
• Between keyless control
module terminal 3B and
PCM terminal 4S
Are there any malfunctions?
No Go to the next step.
(w) RX8-Engine Troubleshooting
Page 33