LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2000 >> RAV4 Base, AWD, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics >> Diagnostic Tests >> DTC P0105: Manifold Absolute Pressure (Map)/Barometric Pressure Sensor Circuit >> Diagnosis & Repair
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnosis & Repair

  1. Connect scan tool to Data Link Connector (DLC) No. 3. See Fig 1. Turn ignition on. Using scan tool, read MAP sensor value. If reading is not same as atmospheric pressure, go to next step. If reading is same as atmospheric pressure, problem is intermittent. Check component and ECM connections.
  2. Access ECM behind bottom center of instrument panel, in front of console. Turn ignition on. Using DVOM, backprobe ECM harness connector and measure voltage between terminals No. 1 (Yellow wire) and No. 9 (Brown wire) at ECM harness connector E5. See Figure. If voltage is 4.5-5.5 volts, go to next step. If voltage is not 4.5-5.5 volts, replace ECM.
  3. Using DVOM, backprobe and measure voltage between terminals No. 2 (Light Green/Black wire) and No. 9 (Brown wire) at ECM harness connector E5. If voltage is 3.3-3.9 volts, replace ECM. If voltage is not 3.3-3.9 volts, go to next step.
  4. Check for open or short in wiring between MAP sensor and ECM. See WIRING DIAGRAMS article. If problem exists, repair wiring as necessary. If problem does not exist, replace MAP sensor.
Fig 1: Connecting Scan Tool To Data Link Connector (DLC) No. 3
G97D28871Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
scientia non olet · About LEMON Manuals