PINPOINT TEST G : The Keyless Entry Keypad Illumination Is Inoperative Or Always On
- G1 CHECK THE KEYLESS ENTRY KEYPAD ILLUMINATION
- Ignition OFF.
- Check the keyless entry keypad illumination.
Is the keyless entry keypad illumination always on?
Yes GO to G8. No GO to G2. - G2 CHECK THE KEYLESS ENTRY KEYPAD INPUT TO THE RFA MODULE
- Using a scan tool, monitor the RFA module PIDs.
- Touch several keyless entry keypad buttons while observing the RFA module PIDs Keypd_SW_1_2, Keypd_SW_3_4, Keypd_SW_5_6, Keypd_SW_7_8 and Keypd_SW_9_0.
Do the PIDs display the correct values?
Yes GO to G3. No GO to Pinpoint Test F . - G3 CHECK THE RFA MODULE DTCs FROM THE SELF-TEST
- Using a scan tool, perform the RFA module self-test.
Is DTC B121A:11 present?
Yes GO to G4. No GO to G6. - G4 CHECK THE KEYLESS ENTRY KEYPAD FOR A SHORT TO GROUND
- Disconnect: Keyless Entry Keypad.
- Using a scan tool, clear the RFA module DTCs.
- Using a scan tool, perform the RFA module self-test.
Is DTC B121B:11 recorded?
Yes GO to G5. No INSTALL a new keyless entry keypad. REFER to Keyless Entry Keypad . - G5 CHECK THE KEYLESS ENTRY KEYPAD ILLUMINATION CIRCUIT FOR A SHORT TO GROUND
- Ignition OFF.
- Disconnect: RFA Module C2153D.
- Measure:
Positive Lead Measurement / Action Negative Lead C500-2 Ground
Is the resistance greater than 10, 000 ohms?
Yes GO to G9. No REPAIR the circuit. - G6 CHECK FOR RFA MODULE OUTPUT
- Using a scan tool, view RFA module PIDs.
- While active commanding the RFA module PID KEYPD_LMP_OS ON, measure:
Positive Lead Measurement / Action Negative Lead C500-2 Ground
Is the voltage greater than 11 volts?
Yes INSTALL a new keyless entry keypad. REFER to Keyless Entry Keypad . No GO to G7. - G7 CHECK THE KEYLESS ENTRY KEYPAD ILLUMINATION CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect: RFA Module C2153D.
Is the resistance less than 3 ohms?
Yes GO to G9. No REPAIR the circuit. - G8 CHECK THE KEYLESS ENTRY KEYPAD ILLUMINATION CIRCUIT FOR A SHORT TO VOLTAGE
- Disconnect: RFA Module C2153D.
- Ignition ON.
- Observe the keypad illumination.
Is the keypad still illuminated?
Yes REPAIR the circuit. No GO to G9. - G9 CHECK FOR CORRECT RFA MODULE OPERATION
- Ignition OFF.
- Disconnect and inspect all RFA module 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 all RFA module 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 RFA module. REFER to Multifunction Electronic Modules . 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.
