The acceleration sensor is used to sense rough road conditions.The sensor’s signal is used by the Engine Control Module(ECM) to prevent wrongful misfire detection.
ECM sets DTC P1309 when the output signal is higher than predetermined value.
Item
Detecting Condition
Possible cause
Monitoring Strategy
? Signal check, High
? Open in signal circuit
? Short to battery in signal circuit(pin 60 to 32)
? Open in ground circuit
? Poor connection of Acceleration sensor
? Faulty Acceleration sensor
? Faulty ECM
Threshold value
? Voltage : > 3.5V
Enable Conditions
Diagnostic Time
? Continuous
Fail Safe
? None
ACCEL Sensor
Normal Parameter
While Idle
IG OFF
Voltage
2.3 ~ 2.7V
0V