Pinpoint Test D : P0504, P0572, P0573 Or P1703
NOTE:
Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
- D1 CHECK THE OPERATION OF THE STOPLAMPS
- Ignition ON.
- Operate the stoplamps.
Do the stoplamps and high mounted stoplamp operate correctly?
Yes GO to D2 No REFER to: Stoplamps . - D2 CHECK THE STOPLAMP SWITCH (BOO1) AND CRUISE CONTROL DEACTIVATOR SWITCH (BOO2) PARAMETER IDENTIFICATIONS (PIDS)
- Using a diagnostic scan tool, view PCM Parameter Identifications (PIDs).
- Using the chart below, monitor the BOO1 (stoplamp switch) and BOO2 (cruise control deactivator switch) Parameter Identifications (PIDs) while applying and releasing the brake pedal.
Brake Pedal Position BOO1 PID BOO2 PID Released Off Off Applied lightly On Off Applied firmly On On
Do the PID values agree with the brake pedal position?
Yes GO to D8 No For an incorrect BOO1 PID value, GO to D3. For an incorrect BOO2 PID value, GO to D4. - D3 CHECK THE STOPLAMP SWITCH CIRCUIT
- Ignition OFF.
- Disconnect: PCM C1915B (1.5L GTDI), C1232B (1.6L GTDI), C1551B (2.5L iVCT), C1381B (2.0L GTDI) or C175B (2.0L Hybrid).
- Ignition ON.
- While applying the brake pedal, measure:
1.5L GTDI
Positive Lead Measurement / Action Negative Lead C1915B-66 Ground 1.6L GTDI
Positive Lead Measurement / Action Negative Lead C1232B-66 Ground 2.0L GTDI
Positive Lead Measurement / Action Negative Lead C1381B-66 Ground 2.5L iVCT
Positive Lead Measurement / Action Negative Lead C1551B-13 Ground 2.0L Hybrid
Positive Lead Measurement / Action Negative Lead C175B-2 Ground
Is the voltage greater than 11 volts with the brake applied and 0 volt when the brake pedal is released?
Yes GO to D8 No REPAIR the circuit. - D4 CHECK THE CRUISE CONTROL DEACTIVATOR SWITCH FOR CORRECT OPERATION
- Ignition OFF.
- Disconnect: PCM C1915B (1.5L GTDI), C1232B (1.6L GTDI), C1551B (2.5L iVCT), C1381B (2.0L GTDI) or C175B (2.0L Hybrid).
- While firmly applying and releasing the brake pedal, measure:
1.5L GTDI
Positive Lead Measurement / Action Negative Lead C1915B-65 Ground 1.6L GTDI
Positive Lead Measurement / Action Negative Lead C1232B-65 Ground 2.0L GTDI
Positive Lead Measurement / Action Negative Lead C1381B-65 Ground 2.5L iVCT
Positive Lead Measurement / Action Negative Lead C1551B-46 Ground 2.0L Hybrid
Positive Lead Measurement / Action Negative Lead C175B-3 Ground
Is the resistance less than 3 ohms with the brake pedal released, and greater than 10, 000 ohms with the brake pedal firmly applied?
Yes GO to D8 No GO to D5 - D5 CHECK THE CRUISE CONTROL DEACTIVATOR SWITCH GROUND CIRCUIT FOR AN OPEN
- Disconnect: BPP Switch C278 .
- Measure:
Positive Lead Measurement / Action Negative Lead C278-3 Ground
Is the resistance less than 3 ohms?
Yes GO to D6 No REPAIR the circuit. - D6 CHECK THE CRUISE CONTROL DEACTIVATOR SWITCH SIGNAL CIRCUIT FOR A SHORT TO GROUND
- Measure:
Positive Lead Measurement / Action Negative Lead C278-1 Ground
Is the resistance greater than 10, 000 ohms?
Yes GO to D7 No REPAIR the circuit. - Measure:
- D7 CHECK THE CRUISE CONTROL DEACTIVATOR SWITCH SIGNAL CIRCUIT FOR AN OPEN
- Measure:
1.5L GTDI
Positive Lead Measurement / Action Negative Lead C1915B-65 Ground 1.6L GTDI
Positive Lead Measurement / Action Negative Lead C1232B-65 Ground 2.0L GTDI
Positive Lead Measurement / Action Negative Lead C1381B-65 Ground 2.5L iVCT
Positive Lead Measurement / Action Negative Lead C1551B-46 Ground 2.0L Hybrid
Positive Lead Measurement / Action Negative Lead C175B-3 Ground
Is the resistance less than 3 ohms?
Yes INSTALL a new BPP switch. REFER to: Stoplamp Switch . No REPAIR the signal circuit for an open. - Measure:
- D8 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION
- Ignition OFF.
- Disconnect and inspect all PCM connectors.
- Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary
- Reconnect the PCM connectors. Make sure they seat and latch correctly.
- Operate the system and determine if the concern is still present.
Is the concern still present?
Yes CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new PCM. Refer to the appropriate Engine article for the procedure. No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.