Mazda RX-8 Workshop Manual page 703

10 Access the APP1 and APP2 PIDs.
(See ON-BOARD DIAGNOSTIC
TEST [13B-MSP].)
Crank the engine with the
accelerator pedal released.
Are the APP1 and APP2 PIDs
indicating that the accelerator
pedal is in the released position?
11 Access the TP REL PID.
(See ON-BOARD DIAGNOSTIC
TEST [13B-MSP].)
Crank the engine with the
accelerator pedal released.
Does the TP REL PID indicate the
closed throttle position?
No Go to the next step.
Yes Go to the next step.
No Inspect the following:
APP sensor
(See
(APP) SENSOR INSPECTION
Wiring harnesses and connectors between
PCM and APP sensor
Yes Go to the next step.
No Inspect the following:
TP sensor
(See
INSPECTION
Wiring harnesses and connectors between
PCM and throttle body
Open or poor GND circuit
(PCM terminal 1A, 1BB,
1AZ, 1BH or 1BD)
Poor connection of
vehicle body GND
ACCELERATOR PEDAL POSITION
PCM terminal 1AL—APP
sensor terminal D
PCM terminal 1AO—APP
sensor terminal F
PCM terminal 1AS—APP
sensor terminal E
PCM terminal 1AJ—APP
sensor terminal A
PCM terminal 1AP—APP
sensor terminal C
PCM terminal 1AV—APP
sensor terminal B
THROTTLE POSITION (TP) SENSOR
[13B-MSP].)
PCM terminal 2AO—
throttle body terminal E
[13B-MSP].)