Output Test - Bosch ACS 653 Repair Instruction

ACS 653, ACS 663 Service Manual

Output Test

The Output Test checks the electrical outputs
from the power board and wiring harnesses
to the various solenoids, fan, vacuum pump,
and compressor. This test is useful as a
troubleshooting method to determine if a device
is operating properly or not.
1. From the Service Menu, scroll to Output Test.
2. Select OK icon. The following displays:
Placeholder X indicates the state of the output
device. A 1 or 0 indicates whether the device
is ON or OFF. A list of the tests is provided in
the table below:
OUTPUT TEST
Air Purge Solenoid S1
PAG Solenoid S2
Oil Drain Solenoid S3
Low-Side Inlet Solenoid S4
High-Side Inlet Solenoid S5
High-Side Charge Solenoid S6
Low-Side Charge Solenoid S7
Recycle Solenoid S8
Vacuum Solenoid S9
Recover Solenoid S11
Deep Recover Solenoid S12
Oil Return Solenoid S13
POE Solenoid S14
Dye Solenoid S15
Identifier solenoid S17
(for ACS 663-RI only)
N2H2 inlet solenoid S19 (only if enabled)
N2H2 vent solenoid S20 (only if enabled)
Robert Bosch GmbH
Diagnostics and Testing
OUTPUT TEST
Tank liquid solenoid S22
Vacuum Pump
Compressor
Alert Beeper
3. As the tests are highlighted, select
ON/OFF icon. The state will change from 0
to 1. There should be a click heard as the
solenoids are energized, the motors of the
fan, vacuum pump, and compressor should
start, the beacon, if installed will flash once,
and the beeper will sound.
4. When the test is complete, select BACK
icon to return to the Service Menu.
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Fan
SP00D00624 2021-04-08