Mazda RX8 - Page 324

Diagnostic procedure
STEP INSPECTION ACTION
Yes Go to Step 11.
1
INSPECT HORN AND HAZARD WARNING
LIGHT OPERATION DURING ON-BOARD
DIAGNOSIS
• Do all of the following items work during on-
board diagnostic function operation?
 Hazard warning lights flash.
 Horns sounds intermittently.
 Trunk lid opens.
No Go to the next step.
Yes Go to Step 5.
2
INSPECT HAZARD WARNING LIGHT
OPERATION DURING ON-BOARD DIAGNOSIS
• Do the hazard warning lights flash during on-
board diagnostic function operation?
No Go to the next step.
Yes Go to the next step.
3
INSPECT HAZARD WARNING LIGHT CIRCUIT
• Do the hazard warning lights flash when hazard
warning switch is on?
No Inspect the hazard warning light circuit.
Yes
Reinspect the malfunction symptoms,
then repeat from Step 1 if malfunction
recurs.
*4
INSPECT IF MALFUNCTION IS IN WIRING
HARNESS (BETWEEN KEYLESS CONTROL
MODULE AND FLASHER CONTROL MODULE)
OR KEYLESS CONTROL MODULE
• Measure the voltage at keyless control module
connector terminal 2I during on-board diagnostic
function operation.
 When hazard warning lights flashed:
Alternates between B+ and below 1.0 V
• Is the voltage as above?
No
• Inspect the wiring harness
between the keyless control
module and flasher control
module.
 If the wiring harness is
normal, replace the
keyless control module
and reprogram the
transmitter ID code, then
go to Step 14.
 If the wiring harness is
malfunctioning, repair the
wiring harness, then go to
Step 14.
5 Yes Go to Step 8.
(w) RX-8 Body
Page 324