PINPOINT TEST G531332p22

Pinpoint Tests

PINPOINT TEST G531332p22 : ACCELERATOR PEDAL POSITION (APP) SENSOR SENSING CIRCUIT 1 HIGH/LOW VOLTAGE

G531332t83 : CHECK THE APP SENSOR SENSING CIRCUIT 1 FOR HIGH RESISTANCE
1. Key off.
2. Disconnect the ECM electrical connector, PI300.
3. Disconnect the APP sensor electrical connector, CR14.
4. Measure the resistance between:

ECM connector PI300, APP sensor connector CR14,
harness side harness side
Pin 01 Pin 38

- Is the resistance greater than 5 Ohms?

->YES
REPAIR the high resistance circuit. CLEAR the DTC. TEST the system for normal operation.

->NO
GO to Pinpoint Test G531332t84.

G531332t84 : CHECK THE APP SENSOR SENSING CIRCUIT FOR SHORT CIRCUIT TO POWER
1. Key on, ignition off.
2. Measure the voltage between:

APP sensor connector CR14, Battery
harness side
Pin 01 Negative terminal

- Is the voltage greater than 3 volts?

->YES
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.

->NO
GO to Pinpoint Test G531332t85.

G531332t85 : CHECK THE APP SENSOR SENSING CIRCUIT FOR SHORT CIRCUIT TO GROUND
1. Key off.
2. Measure the resistance between:

APP sensor connector CR14, Battery
harness side
Pin 01 Negative terminal

- Is the resistance less than 10,000 Ohms?

->YES
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.

->NO
GO to Pinpoint Test G531332t86.

G531332t86 : CHECK THE APP SENSOR SUPPLY VOLTAGE AT THE SENSOR
1. Reconnect the ECM electrical connector, PI300.
2. Key on, ignition off.
3. Measure the voltage between:

APP sensor connector CR14, Battery
harness side
Pin 02 Negative terminal

- Is the voltage less than 4 volts?

->YES
GO to Pinpoint Test G531332t87.

->NO
INSTALL a new APP sensor. CLEAR the DTC. TEST the system for normal operation.

G531332t87 : CHECK THE APP SENSOR SUPPLY VOLTAGE CIRCUIT FOR HIGH RESISTANCE
1. Key off.
2. Disconnect the ECM electrical connector, PI300.
3. Measure the resistance between:

APP sensor connector CR14, ECM connector PI300,
harness side harness side
Pin 02 Pin 32

- Is the resistance greater than 5 Ohms?

->YES
REPAIR the high resistance circuit. CLEAR the DTC. TEST the system for normal operation.

->NO
Check the ECM power supplies (recheck DTCs. P1104 may be flagged).