Boost Pressure Servo Motor Circuit Open Circuit

Test 1 - Test 4:

Test 5 - Test 7:

Test 8:

SYMPTOM
P2112-BOOST PRESSURE SERVO MOTOR CIRCUIT OPEN CIRCUIT

TEST NOTE
This symptom is diagnosed using the test P2111-BOOST PRESSURE SERVO MOTOR CIRCUIT SHORT TO GROUND.

WHEN MONITORED
With the ignition on.

SET CONDITION
The ECM detects an open or short to ground on the Boost Pressure Servo Motor Control circuit.

POSSIBLE CAUSES
- Checking the engine control relay system
- Intermittent condition
- 12 volt supply circuit open
- Boost pressure servo motor control circuit shorted to ground
- Boost pressure servo motor control open
- Boost pressure servo motor
- Engine control module