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Home >> Isuzu >> 1997 >> Trooper LS >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System - Introduction >> Component Tests >> Test C-4: Transmission Input Inspection >> Automatic Transmission
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Automatic Transmission

  1. Turn ignition off. Place gear selector lever in "P" position. Disconnect EBCM harness connector. Using DVOM, check for continuity between EBCM harness connector terminals No. 22 (Purple/White wire) and No. 28 (Black wire). If continuity is present, repair Purple/White wire for a short to ground. If continuity is not present, go to next step.
  2. Turn ignition on. Measure voltage between EBCM harness connector terminals No. 22 (Purple/White wire) and No. 28 (Black wire). If voltage is less than 6 volts with gear selector lever in "L" and "R" positions, leave DVOM connected and go to next step. If voltage is not as specified, check for faulty harness between transmission switch and EBCM. Repair as necessary. If no problem is found, replace transmission switch.
  3. If voltage is 6.6-9.0 volts with gear selector lever in 2nd, 3rd, 4th and "N" positions, transmission switch is okay. If voltage is not as specified, check for faulty harness between transmission switch and EBCM. Repair as necessary. If no problem is found, replace transmission switch.
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