Diagnostic Aids
Perform this test only when directed by QUICK TEST. This test is intended to diagnose the following components and circuits:
- Manifold Absolute Pressure/Barometer (MAP/BARO) sensor.
- MAP/BARO solenoid.
- Harness circuit; MAP/BARO.
- PCM.
MAP/BARO & MAP/BARO SOL CIRCUIT IDENTIFICATION
| Circuit | PCM Pin No. | Wire Color |
|---|---|---|
| MAP/BARO | 41 | Pink |
| VREF | 57 | Brown |
| SIG RTN | 58 | Black/Yellow |
| MAP/BARO SOL | 98 | Violet |
For DTC P0105, disconnect MAP/BARO sensor circuit connector. Insert a jumper wire between VREF and MAP/BARO signal circuits at MAP/BARO sensor harness connector with ignition on. MAP/BARO PID should read approximately 5 volts. With MAP/BARO sensor circuit connector disconnected, insert a jumper wire between SIG RTN terminal and MAP/BARO sensor signal circuits at MAP/BARO sensor harness connector with ignition on. MAP/BARO PID should read approximately zero volt.
For DTC P1105, there should be a significant difference in MAP/BP_V PID readings between KOEO and KOER at idle for at least 5 seconds.