Inspection & Adjustment

Turn ignition off. Connect Harness Adapter (49 F018 902) and Signal Monitor (49 9200 162) to vehicle. See Fig 1 . Turn ignition on. Manually rotate throttle lever, and check TP sensor signal. See TP SENSOR VOLTAGE table.
If voltage is not within specification, close throttle. Loosen TP sensor screws, and rotate TP sensor. See Fig 2 . Recheck TP sensor signal. Turn ignition off. Disconnect test equipment. Disconnect negative battery cable and depress brake pedal for 20 seconds. Reconnect negative battery cable.

TP SENSOR VOLTAGE

Wire Color To Ground

Closed Throttle Volts

WOT Volts

Green/Red (3F) ⁽¹⁾

.75-1.25

4.8-5.0

Black/Green (3G) ⁽¹⁾

0.7-1.0

4.2-4.6

⁽¹⁾	PCM terminal pin No. in parentheses.

Fig 1: Checking TP Sensor Voltage Signal (RX7)

Courtesy of MAZDA MOTORS CORP.

Fig 2: Adjusting TP Sensor (RX7)

Courtesy of MAZDA MOTORS CORP.