Data

Scan Tool Data List: Data:

IGNITION 1 - RANGE: ACTIVE/INACTIVE
The BCM uses this data in order to determine the position of the ignition switch. When the ignition switch is in the RUN or CRANK position, ACTIVE is displayed. When the ignition switch is not in the RUN or CRANK position, INACTIVE is displayed.

IGNITION 3 - RANGE: ACTIVE/INACTIVE
The BCM uses this data in order to determine the position of the ignition switch. When the ignition switch is in the RUN position, ACTIVE is displayed. When the switch is not in the RUN position, INACTIVE is displayed.

BATTERY VOLTAGE - RANGE: 9-16 VOLTS
The voltage value displayed refers to the battery system voltage measured by the BCM on CKT 1140.

PASSLOCKTM POWER - RANGE: ACTIVE/INACTIVE
The BCM supplies 12 Volts and a ground for the PasslockTM. The PasslockTM power is active whenever the BCM is awake. After the ignition switch is turned to the OFF position, the BCM may take up to 20 minutes in order to power down. When the ignition switch is turned to the OFF position, a momentary loss of voltage may occur at the PasslockTM sensor. This occurrence is normal due to the BCM internal self test when the ignition switch is turned to the OFF position.

PASSLOCKTM DATA VOLTAGE - RANGE: 0-5 VOLTS
The PasslockTM data voltage displayed indicates the return voltage from the PasslockTM sensor to the BCM. The BCM also determines if the voltage received is a valid voltage window or an invalid voltage window. The BCM has 10 valid voltage windows, an OPEN voltage window, a TAMPER voltage window, and a SHORTENED voltage window. The value displayed on the scan tool will be within 0-5 volts. The BCM converts this analog voltage to a class 2 serial data password. The password is then sent to the PCM/VCM. The PCM/VCM must receive the same password that was learned in the last learn procedure. If the PCM/VCM does not receive a valid password from the BCM, the PCM/VCM will not enable the fuel injection system. Refer to PASSLOCK Reprogramming Seed and key PasslockTM Reprogramming Seed and Key (10 minutes), or PASSLOCK Reprogramming Auto Learn PasslockTM Reprogramming Auto Learn (30 minutes).

PASSLOCKTM STATE RANGE: IGNITION OFF/TAMPER/FAIL ENABLE/FAIL ENABLE DEC/SEEDKEY LRN PEND/SEEDKEY LEARN/AUTO LEARN PEND/LEARN PASSLOCK/MONITOR PASSLOCK/NORMAL DECISION/AUTO LEARN
The indication displayed refers to the state of the PasslockTM system.

PASSLOCKTM CODE - RANGE: OPEN/SHORTED/TAMPER/NUMERIC
The PasslockTM code displayed indicates the internal PasslockTM sensor resistance value. The BCM determines if the PasslockTM code received is a valid PasslockTM code or an invalid PasslockTM code. The BCM has 10 valid PasslockTM codes, an OPEN PasslockTM code, a TAMPER PasslockTM code, and a SHORTED PasslockTM code. The scan tool will display any valid V code as a numeric value. The value displayed on the scan tool should be within 1-10 (valid code 7), SHORTED, TAMPER or OPEN.

TAMPER TIMER - RANGE: 0-600 SECONDS
Use the tamper timer as part of the interactive procedure in order to allow the BCM to display the time remaining when in the tamper mode. The tamper timer starts when the following conditions exist:
^ The ignition switch is turned to the RUN position.
^ The BCM receives a PasslockTM data voltage that is different from the last learned PasslockTM data voltage.

The tamper timer has a lockout timer of approximately 10 minutes. The vehicle must remain in the tamper mode even if the ignition switch is turned from the RUN position to the OFF position during the 10 minute period.

AUTO LEARN TIMER - RANGE: 0-600 SECONDS
Use the auto learn timer as part of the interactive procedure in order to allow the BCM to learn valid PasslockTM data from the PasslockTM sensor. The learn procedure consists of 3 consecutive lockout cycles of approximately 30 minutes. The auto learn timer does not display the time in which the PCM/VCM is in the lockout mode.

SECURITY LAMP STATE - RANGE: ON/OFF/FLASHING
The security lamp will turn ON steady for 3 seconds and then turn OFF when the ignition switch is turned from the OFF position to the RUN position. The security telltale should have 3 states: OFF, ON STEADY and FLASHING. If the IPC is unable to communicate with the BCM, the security telltale will stay ON STEADY (after the bulb check). The PasslockTM system will function while the IPC is not communicating, as long as class 2 communication is possible. If the vehicle is in the lockout cycle, the security telltale flashes momentarily and then turns ON STEADY for approximately 10 minutes. The PasslockTM system requires 3 consecutive lockout cycles in order to complete the 30 minute learn procedure for a changed component. A 10 minute learn procedure is also available. Refer to PASSLOCK Reprogramming Seed and key PasslockTM Reprogramming Seed and Key (10 minutes), or PASSLOCK Reprogramming Auto Learn PasslockTM Reprogramming Auto Learn (30 minutes).