Test H: The Doors Do Not Lock/Unlock Using the Keyless Entry Keypad
PINPOINT TEST H: THE DOORS DO NOT LOCK/UNLOCK USING THE KEYLESS ENTRY KEYPADNormal Operation
The SJB monitors for a ground signal on the 12-volt reference circuits CPK29 (GY/BU), CPK30 (VT/GN), and CPK31 (YE/GN) for the keyless entry keypad. When an individual keypad button is pressed an individual or a combination of the reference circuits are connected to ground. The SJB then determines which button was pressed based on which circuit(s) has a ground signal. Circuit RPK27 (BU) is the ground for the keypad buttons and is internally grounded in the SJB. Once the SJB determines that the 5-digit personal entry code, or the factory set 5-digit entry code has been entered on the keypad, the SJB then energizes the driver door unlock relay to unlock the driver door.
To unlock all the doors and liftgate, the 3/4 button must be pressed within 5 seconds of the 5-digit code being entered.
To lock all the doors and liftgate, the 5-digit code does not need to be entered. Press the 7/8 and 9/0 buttons at the same time.
The keyless entry keypad has an anti-scan feature to help prevent theft. If a valid 5-digit code is not entered within 7 attempts (35 consecutive button presses), the keyless entry keypad will go into anti-scan. In anti-scan mode, the keypad illumination will flash and all input will be ignored except for pressing the 7/8 and 9/0 buttons, which will lock all doors.
- DTC B2695 (Keypad A Switch Circuit Failure) - is an on-demand DTC that sets when the SJB detects a short to ground on a keypad input circuit.
- DTC B2696 (Keypad B Switch Circuit Failure) - is an on-demand DTC that sets when the SJB detects a short to ground on a keypad input circuit.
- DTC B2697 (Keypad C Switch Circuit Failure) - is an on-demand DTC that sets when the SJB detects a short to ground on a keypad input circuit.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Keyless entry keypad
- SJB
H1-H5:
H5-H8:
H8-H10:
H11-H12:
