Contents Wiring diagrams Section: Testing & Diagnostics All sections

Engine Control System: Diagnosis Mazda Tribute I facelift

Testing & Diagnostics 1 illustration

POWERTRAIN CONTROL MODULE (PCM) INSPECTION

CAUTIONThe PCM terminal voltages vary with change in measuring conditions and vehicle conditions. Always carry out a total inspection of the input systems, output systems, and PCM to determine the cause of trouble. Otherwise, a wrong diagnosis will be made.

Scheme 624

Scheme 624: USING SST (104 PIN BREAKOUT BOX)
  1. Disconnect the negative battery cable.
  2. Disconnect the PCM connector.
  3. Connect the SST (104 Pin Breakout Box) to the PCM as shown in illustration.
  4. Tighten the connector bolt. Tightening torque 7.9 - 10.7 N.m (80 - 110 kgf.m, 69.5 - 95.4 ln.lbf)
  5. Connect the negative battery cable.
  6. Measure the voltage at each terminal.
  7. If any incorrect voltage is detected, check related systems, wiring harnesses and connectors.