Mazda RX8 - Page 327

NO.2 ALL ON-BOARD DIAGNOSTIC FUNCTIONS INOPERATIVE
• When performing an asterisked (*) troubleshooting inspection, slightly shake the wiring harness and
connectors while performing the inspection to discover whether poor contact points are the cause of any
intermittent malfunctions. If there is a problem, verify that the connectors, terminals and wiring
harnesses are connected correctly and undamaged.
• The door switches include the rear door upper latch switches and rear door lower latch switches.
2 All on-board diagnostic functions inoperative
DESCRIPTION
• Malfunction in keyless control module power supply circuit, door switch circuit,
trunk lid compartment light circuit, keyless control module ground circuit, or
keyless receiver.
POSSIBLE
CAUSE
• Malfunction in IG1 or B+ signal circuit of keyless control module
 Keyless control module power supply fuse malfunction
 Malfunction in wiring harness between keyless control module power
supply fuses and keyless control module
• Malfunction in door open/closed signal circuit of keyless control module
 Door switch system malfunction
 Keyless control module malfunction
 Malfunction in wiring harness between keyless control module and door
switch
• Malfunction in trunk lid open signal circuit of keyless control module
 Trunk lid compartment light switch system malfunction
 Keyless control module malfunction
 Malfunction in wiring harness between keyless control module and trunk lid
compartment light switch
• Malfunction in keyless control module GND signal circuit
 Malfunction in wiring harness between keyless control module and ground
• Malfunction in keyless receiver
 Keyless receiver malfunction
 Malfunction in wiring harness between keyless control module and keyless
receiver
(w) RX-8 Body
Page 327