Mazda RX-8 Workshop Manual page 3081

OUTPUTTING DTCs
Refer to the terminal voltage table of the
control module outputting DTCs or use the
PID/data monitoring function to inspect the
terminal voltage and fuse condition.
Is the power supply voltage normal?
4 INSPECTION OF BODY GROUND CONDITION OF CONTROL
MODULE OUTPUTTING DTCs
Inspect the body ground wires and ground
point of the control module outputting DTCs.
Are the ground and ground point normal?
5 CAN SYSTEM RELATED WIRING HARNESS INSPECTION
CAN system related wiring harness inspection:
Short to ground
Short to power supply
Short between twisted pair
wiring harness
Open circuit
Is the wiring harness normal?
6 INSPECT PCM
Disconnect the PCM connector.
Measure the resistance between the following
PCM connector terminals:
Between terminal 1AM and
terminal 1AI (part side)
Is the resistance 118—130 ohm?
7 INSPECT INSTRUMENT CLUSTER
Disconnect the instrument cluster connector.
Measure the resistance between the following
instrument cluster connector terminals:
Between terminal 1J and
terminal 1L (part side)
Is the resistance 118—130 ohm?
8 CAN RELATED MODULE VERIFICATION
Remove only one of the CAN-related modules.
Clear DTCs using the M-MDS.
Inspect the DTCs of all modules using the M-
MDS.
Are DTCs U0073, U1900, U2516 displayed?
9 AFTER REPAIR VERIFICATION
Connect all of the modules.
No Repair or replace the connector, then go to Step 9.
YesGo to the next step.
No Repair or replace the connector, then go to Step 9.
YesGo to the next step.
No Repair or replace the connector, then go to Step 9.
YesGo to the next step.
No Replace the PCM, then go to Step 9.
(See PCM REMOVAL/INSTALLATION
YesGo to the next step.
No Replace the instrument cluster, then go to Step 9.
(See INSTRUMENT CLUSTER
YesReinstall the removed module, remove another module and perform the
same inspection. Inspect all of the CAN-related modules using the same
procedure. After inspecting all of the modules, go to the next step.
No Replace the removed module.
YesPerform the CAN system on-board diagnosis again according to the
troubleshooting procedure
(See FOREWORD [MULTIPLEX COMMUNICATION
[13B-MSP].)
REMOVAL/INSTALLATION.)
SYSTEM].)