PINPOINT TEST G531332p23

Pinpoint Tests

PINPOINT TEST G531332p23 : ACCELERATOR PEDAL POSITION (APP) SENSOR SENSING CIRCUIT 2 HIGH/LOW VOLTAGE

G531332t88 : CHECK THE APP SENSOR SENSING CIRCUIT FOR HIGH RESISTANCE
1. Key off.
2. Disconnect the APP sensor electrical connector, CR14.
3. Disconnect the ECM electrical connector, PI300.
4. Measure the resistance between:

APP sensor connector CR14, ECM connector PI300,
harness side harness side
Pin 04 Pin 24

- 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 G531332t89.

G531332t89 : CHECK THE APP SENSOR SENSING CIRCUIT FOR SHORT CIRCUIT TO POWER
1. Key on, engine off.
2. Measure the voltage between:

APP sensor connector CR14, Battery
harness side
Pin 04 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 G531332t90.

G531332t90 : 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 04 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 G531332t91.

G531332t91 : CHECK THE APP SENSOR SUPPLY VOLTAGE AT THE SENSOR
1. Reconnect the ECM electrical connector, PI300.
2. Key on, engine off.
3. Measure the voltage between:

APP sensor connector CR14, Battery
harness side
Pin 05 Negative terminal

- Is the voltage less than 4 volts?

->YES
GO to Pinpoint Test G531332t92.

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

G531332t92 : 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 05 Pin 19

- 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).