TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Turn the ignition on.
Measure the voltage of the (K1) MAP Sensor Signal circuit in the MAP Sensor
harness connector.
Is the voltage above 5.2 volts?
All
Yes
→ Repair the the short to battery voltage in the (K1) MAP Sensor
Signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No
→ Go To 4
4
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance of the (K1) MAP Sensor Signal circuit between the MAP
Sensor harness connector and the PCM harness connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 5
No
→ Repair the open in the (K1) MAP Sensor Signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
5
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance of the (K900) Sensor Ground circuit between the MAP Sensor
harness connector and the PCM harness connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 6
No
→ Repair the open in the (K900) Sensor ground circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
6
Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Connect a jumper wire between the (K1) MAP Sensor Signal circuit and the (K900)
Sensor ground circuit.
With the DRBIII
t, monitor the MAP Sensor voltage.
Turn the ignition on.
Is the voltage below 1.0 volt?
All
Yes
→ Replace the MAP Sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
No
→ Go To 7
7
NOTE: Before Continuing: Disconnect the PCM harness connector and
check the related wiring terminals for corrosion, damage or terminal push
out. Repair as necessary.
Using the schematics as a guide, inspect the wire harness and connectors. Pay
particular attention to all Power and Ground circuits.
If there are no possible causes remaining, view repair.
All
Repair
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
43
DRIVEABILITY - SBEC
P0108-MAP SENSOR VOLTAGE TOO HIGH —
Continued