Pinpoint Test G239843P5

PINPOINT TEST G239843p5 : ONE OR MORE D2B MODULES NOT RESPONDING. WAKE-UP SIGNAL FAULT

G239843t255 : CHECK THE WAKE-UP SIGNAL TO THE CD CHANGER
1. Disconnect the CD changer electrical connector TLO5.
2. Turn the ignition switch to the ACC position.
3. Measure the voltage between TLO5 pin 03 (OG) and GROUND, using an oscilloscope.

- Does the oscilloscope show a wake-up signal as described?

-> YES
GO to Pinpoint Test G239843t256.

-> NO
REPAIR the circuit between TLO5 pin 03 and ACU electrical connector CC08 pin 19. CLEAR the DTC. TEST the system for normal operation.

G239843t256 : CHECK THE WAKE-UP SIGNAL TO THE PHONE MODULE
1. Disconnect the phone module electrical connector TLO7.
2. Turn the ignition switch to the ACC position.
3. Measure the voltage between TLO7 pin 23 (OG) and GROUND, using an oscilloscope.

- Does the oscilloscope show a wake-up signal as described?

-> YES
GO to Pinpoint Test G239843t257.

-> NO
REPAIR the circuit between TLO7 pin 23 and audio control module electrical connector CC08 pin 19. CLEAR the DTC. TEST the system for normal operation.

G239843t257 : CHECK THE WAKE-UP SIGNAL TO THE VOICE ACTIVATED CONTROL MODULE
1. Disconnect the voice activated control module electrical connector TL68.
2. Turn the ignition switch to the ACC position.
3. Measure the voltage between TL68 pin 14 (OG) and GROUND, using an oscilloscope.

- Does the oscilloscope show a wake-up signal as described?

-> YES
GO to Pinpoint Test G239843t258.

-> NO
REPAIR the circuit between TL68 pin 14 and audio control module electrical connector CC08 pin 19. CLEAR the DTC. TEST the system for normal operation.

G239843t258 : CHECK THE WAKE-UP SIGNAL TO THE NAVIGATION COMPUTER
1. Disconnect the navigation module electrical connector TLOO2.
2. Turn the ignition switch to the ACC position.
3. Measure the voltage between TLO2 pin 03 (OG) and GROUND, using an oscilloscope.

- Does the oscilloscope show a wake-up signal as described?

-> YES
GO to Pinpoint Test G239843t259.

-> NO
REPAIR the circuit between TLO2 pin 03 and audio control module electrical connector CC08 pin 19. CLEAR the DTC. TEST the system for normal operation.

G239843t259 : CHECK THE WAKE-UP SIGNAL TO THE AMP
1. Disconnect the amplifier electrical connector TLO9.
2. Turn the ignition switch to the ACC position.
3. Measure the voltage between TLO9 pin 05 (OG) and GROUND, using an oscilloscope.

- Does the oscilloscope show a wake-up signal as described?

-> YES
GO to Pinpoint Test G239843t351.

-> NO
REPAIR the circuit between TLO9 pin 05 and audio control module electrical connector CC08 pin 19. CLEAR the DTC. TEST the system for normal operation.

G239843t351 : CHECK THE WAKE-UP SIGNAL TO THE REAR ENTERTAINMENT MODULE
1. Disconnect the rear entertainment module electrical connector RC001.
2. Turn the ignition switch to the ACC position.
3. Measure the voltage between RC01 pin 06 (OG) and GROUND, using an oscilloscope.

- Does the oscilloscope show a wake-up signal as described?

-> YES
Check for DTCs indicating a module fault.

-> NO
REPAIR the circuit between RC01 pin 06 and audio control module electrical connector CC08 pin 19. CLEAR the DTC. TEST the system for normal operation.