Mazda RX8 - Page 434

• Is malfunctioning part wiring harness 3 (front harness)? No Go to the next step.
Yes Go to Step 38.
10
DETERMINING LOCATION OF A MALFUNCTION
• Is malfunctioning part wiring harness 4 (front harness) or
the TCM?
No Go to the next step.
Yes Go to Step 40.
11
DETERMINING LOCATION OF A MALFUNCTION
• Is malfunctioning part wiring harness 2 (front harness) or
EPS control module?
No Go to the next step.
Yes Go to Step 42.
12
DETERMINING LOCATION OF A MALFUNCTION
• Is malfunctioning part wiring harness 1 (front harness) or
PCM?
No Troubleshooting completed.
Yes Go to the next step.
13
INSPECT INSTRUMENT CLUSTER CONNECTOR
• Disconnect negative battery cable.
• Disconnect instrument cluster connector.
• Is instrument cluster connector normal?
No Replace wiring harness.
Yes Go to the next step.
14
• Is inspected vehicle AT?
No Go to Step 16.
Yes Go to the next step
15
INSPECT WIRING HARNESS BETWEEN TCM AND
INSTRUMENT CLUSTER
• Disconnect TCM connector.
• Inspect following wiring harness between TCM and
instrument cluster terminals for short to ground, short power
supply, and open circuit:
 1Y1L (CAN_L)
 1V1J (CAN_H)
• Is wiring harness normal?
No Replace wiring harness.
16 Yes Go to the next step
(w) RX-8 Body
Page 434