90-96 Cluster Tester by batee.com
Note: This document is new and under construction as of 2/2018. We'll add many more photos and explanations in the coming days!
Included in the box
90-96 Instrument Panel Tester w/ 34 pin Wiring Harness Connector Installed- Click Here to buy.
AC Power Supply
Video of the Testing Process
- Free Video of this tester in action - Click Here
- Connect the 34 pin wiring harness connector to the 90-96 instrument panel wiring harness connector.
- Plug the AC power supply into the wall.
- Plug the barrel connector output of the power supply into the rear of the 90-96 instrument panel tester. The cluster tester should light up with the following info on the screen:
- Press the green button marked Menu to display the menu:
- Press the yellow button marked down to select the year of the cluster to test.
- If the year range is correct for your cluster, go to step 7. Otherwise press the green button marked Select to change the year range.
- Press the yellow button marked Down to highlight the RPM of the tach needle.
- If the max RPM of your cluster is 6000, skip to step 9. Otherwise press the green button marked Select to change the tachometer range.
- When the year range and tach range settings are correct, press the red button marked Up twice to move the blue highlight bar to "Start tests".
- Press the green button marked Next to start the testing process. The cluster will again show a list of the settings you have chosen.
- If the settings are correct, click the green button marked Next to start the tests. If the settings are not correct, click the blue Exit button to return to the menu screen and fix the settings. Next highlight the Start Tests text and press the green Select button to start the tests.
- The first test is the LCD test. The LCD should light up with 60MPH, a full tank of gas, and the number 123456.7 in the odometer field.
- Click the green Next button to continue to the next screen.
- Press the green Next button to continue on to the tachometer tests.
- The tachometer needle should point to approximately half scale (3,000 in the case of a 6K tach, or 4,000 in the case of an 8k tach). If not, this may indicate a defective tach calibration IC. Press the green button marked Next to continue to the full-scale tach screen.
- The tachometer needle should point to approximately full scale (6,000 or 8,000 RPM). If not, this may indicate a defective tach calibration IC. If you are installing a replacement tach calibration IC, you should adjust the potentiometer on the tach IC at this point. Adjust the pot so the needle points to full scale, or slightly past full scale if you want to be extra careful!
- This completes the guided portion of the tests. Press the blue button marked Exit to exit to the main menu.
- Look at the rear of the panel. Check for any bulbs that are not lit and replace any defective bulbs found with PC161 bulbs only.
- We are applying approximately 12.0VDC to the voltmeter, so that's what it should read.
- The Oil Pressure, Oil Temp and Coolant Temp gauges should each read approximately half-scale. If they don't, this may indicate a problem with connectivity to the PC board, or a problem with the needle movement itself.
- Remember the GM warning that shipped stuck to the front of these gauges from the factory: The analog gauges are approximate, not 100% accurate. Look at the readings in the LCD if you want to know the exact pressure or temperature measured.