Mazda RX8 - Page 361

Diagnostic Procedure
STEP INSPECTION ACTION
Yes Go to the next step.
1
INSPECT COIL POWER SUPPLY
SYSTEM
• Disconnect the coil connector.
• Turn the ignition switch to the ON
position.
• Measure the voltage at coil connector
terminal D.
 Is the voltage 8 V or more ?
No Repair the wiring harness.
Yes Go to the next step.
2
INSPECT WIRING HARNESS
BETWEEN COIL AND GROUND
• Turn the ignition switch to the LOCK
position.
• Inspect the wiring harness between
coil connector terminal C and ground
for the following:
 Short to power supply
 Open circuit
• Is the wiring harness normal?
No Repair the wiring harness.
Yes Go to Step 7.
3
INSPECT COIL INPUT SIGNAL
CIRCUIT
• Connect the coil connector.
• Turn the ignition switch to the ON
position.
• Measure the voltage at coil connector
terminal B.
 Is the voltage 8 V or more ?
No Go to the next step.
Yes
Replace the keyless control module and perform
procedures for when replacing the keyless control
module only.
(See KEYLESS CONTROL MODULE
REMOVAL/INSTALLATION .)
(See IMMOBILIZER SYSTEM COMPONENT
REPLACEMENT/KEY ADDITION AND
CLEARING .)
4
INSPECT COIL INPUT SIGNAL
CIRCUIT
• Turn the ignition switch to the LOCK
position.
• Disconnect the keyless control
module connector.
• Turn the ignition switch to the ON
position.
• Measure the voltage at keyless control
module connector terminal 3E.
 Is the voltage 8 V or more ?
No Go to the next step.
(w) RX-8 Body
Page 361