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GAP Diagnostic 2023-09-12 All Rights Reserved
User Manual G3 units : Version 37, Firmware V4.0
RLM Air Suspension
(L322-06, L322-10, L319, L320)
User can choose between the Hitachi and AMK (introduced in 2012 as the new replacement part) com
-
pressor firmware. The firmware for vehicles fitted with the Hitachi compressor contains modifications
on the compressor logic and temperature thresholds to increase its longevity. Re-flashing the suspen
-
sion ECU takes around one minute.
Identify firmware:
This function will return which firmware is currently in the Suspension ECU (Hitachi
or AMK).
Risk Level
Consequences
Recovery Method
Precautions
Moderate
Suspension system non functioning.
The vehicle should only be driven for
a short distance
Repeat reflashing
procedure
None
Table 34.
Risk, updating the suspension ECU
On L319-04 vehicles fitted with an earlier RLM firmware version, the suspension warning lamp
may turn ON after the IPC firmware is updated. Proceed with updating the RLM Suspension
ECU to fix this issue.