Mazda MX-5 NA silhouetteMX-5 NA

INSTRUMENT CLUSTER

T-32prose procedure
Continued from T-31

Preparation SST

SSTFor inspection of gauges
49 0839 285 Checker, fuel and thermometer

Step 1

  1. 1
    Disconnect the connector from the oil pressure sensor.
    Engine showing oil pressure sensor with SST 49 0839 285 connected via red lead to terminal-wire (Y/R).
    05U0TX-055
  2. 2
    Connect the red lead of the SST to terminal-wire (Y/R) and the black lead to a body ground.
  3. 3
    Set the SST to the resistance values shown in the figure.
    Oil pressure gauge dial face (lb/in scale) showing needle test positions: 52 ohm, 41 ohm, 16 ohm with markings 30, 60, 90.
    05U0TX-056
  4. 4
    Turn the ignition switch ON, and verify that the needle indicates the correct values.

Step 1 Diagnostic Result

Yes
ActionReplace oil pressure sensor
No
ActionGo to Step 2

Step 2

  1. 1
    Remove the instrument cluster. (Refer to page T-33.)
  2. 2
    Apply 12V to terminal 2k and ground terminal 2j.
    Instrument cluster rear view showing connection of SST 49 0839 285 to terminals 2k, 2j, and 2b with red and black leads, with 12V power and ground connections.
    05U0TX-286
  3. 3
    Connect the red lead of the SST to terminal 2b and the black lead to a ground.
  4. 4
    Set the SST to the resistance values shown in the figure.
    Oil pressure gauge dial face (lb/in scale) showing needle test positions: 52 ohm, 41 ohm, 16 ohm with markings 30, 60, 90.
    05U0TX-057
  5. 5
    Verify that the needle indicates the correct values.

Step 2 Diagnostic Result

Yes
ActionRepair wiring harness (Instrument cluster — oil pressure sensor)
No
ActionReplace oil pressure gauge
Support our work!

Search Manual

Search pages, specs, and procedures