Hello and nice from Germany.

i have a big problem. When I turn off my H2 and remove
the key. If the radio and the
speedometer continue to work,
the window regulators continue
to work. I replaced the ignition
lock, ignition switch and
ignition housing. but the
problem remains with both the
old and the new parts

sorry for My bad English

best regards Rösi

 

Check door switches!

RAP is cancelled via any door switch.

Retained Accessory Power (RAP) Description and Operation

Retained Accessory Power (RAP) Power Mode

Retained accessory power (RAP) is a power mode that permits the operation of some accessories for up to 10 minutes after the ignition switch is turned OFF. The RAP power mode is enabled by the body control module (BCM).

The BCM:

- Controls certain body functions.
- Sends out a class 2 message via the serial data link, which enables/disables other modules at the beginning/end of the RAP power mode.
Some BCM features, such as the interior courtesy lamps will function after the 10 minute RAP time limit has elapsed. This is normal, and does not mean the RAP power mode is malfunctioning. The BCM enables the following functions in the RAP Power Mode:

- The windshield wipers and washer through the RAP/adaptive cruise control (ACC) relay.
- The right and left power windows through the RAP/ACC relay.
- Any class 2 module that functions in RAP power mode and is not connected to the RAP/ACC relay, is controlled by the BCM via class 2 power mode messages. EXAMPLE: The radio works in RAP power mode because the BCM sends it a class 2 message telling it that the power mode is RAP.

RAP is disabled when:
- A door is opened.
- Low battery voltage is detected by the BCM.
- The ignition switch transitions from OFF to ON or ACC.
- 10 minutes have elapsed after the ignition was turned OFF.

The BCM monitors the ignition switch position, battery voltage and passenger compartment door status to determine whether RAP power mode should be enabled. If the ignition switch transitions from ON to OFF, the battery voltage is within the acceptable range, and the passenger compartment doors are closed, the BCM enables RAP power mode. After 10 minutes have elapsed, the BCM sends a class 2 message to the serial data network. This message commands the other modules that are power moded by the BCM to stop functioning.

 

You mean this part and a problem inside ?

Or do you mean this part




i can’t find problems via Tech2 …. How can I check this problem?

today I will check all ground cables inside And outside the car


best regards rösi

 

And where are the RAP Relays located?

best regards Rösi

 

Open ALL doors to check if RAP cancels. Door switches are integrated in the latch assemblies.

 

Ok thx I will check tomorrow

best regard Roesi

 

the door switch that detects whether the door is closed or open. If it’s failed in the closed position the electronics won’t turn off when you open the door. See if when you open the passenger door with the key out if everything shuts off. That’s what mine did but yours might be different.

Either way. It’s probably a door switch

 

Hello an nice from Germany…

i found the reason of the problem but I understand the problem.

The reason is the relays W/S Wash …. when i pull off the relay the
vehicle goes off....
as soon as i plug in the
relay (also a new one) everything
stays on as described above 🧐🧐

best regards Rösi

 

Sounds like you found the problem, hope the new relay will fix the issue.

 

No with new relay the same problem ….

i will change the windscreen wiper motor …

Because the the communication is between windscreenwiper motor and the w/s Wash relay … i Hope that’s the reason

best regards rösi