Background:
Air bag failure.
Symptoms:
1/ Height control wokring only intermittently.
2/ Rear starts bouncing around all over the place.
Checks: checked suspension , replaced shock absorbers (Non TEMS type), checked fuse's, relays, connections, switchs in console, plug connections in and under vehicle.
Only fault found was the RH air bag deteriorated and loosing air. (No diagnostic performed).
Action- replaced air bags/ checked air lines from tank to air bags, manually filled and driven for 200+ klms- no leaks.
Continuing symptoms- Heigh control working only intermittently and shuts down- Not filling air bags.
Checked system again- can not find any leaks/ checked all connections again- no apparent issues.
Sent Prado to mechanic to diagnose. Report as follows:
Faults:
DTC
C1727Damping Force control Actuator RR Circuit
C1728 Dampining Force Control Actuator RL Circuit
C1733 Height control colenoid RG Circuit malfunction
C1734 HEIGHT control Colenoid RL Circuit Malfunction
C1735 Exhaust Solenoid
C1741 Compressor Relay Coil Malfunction
C1744 Low pressure Tank Solenoid
C1751Continuious Current to Compressor Motor
C1761 AHC ECU Malfunction
They ran a clear codes and then drove and rescanned the system.
the only faults were as follows:
C1727 Damping Force Control Actuator RR Circuit
C1728 Damping force control actuator RL Circuit
He advised me to re-install the TEMS original shockies to overcome the remaining faults- (And possibly fix the system??)
I replaced/ re-installed my original shocks.
Outcome- no suprise..... No change . Air suspension still not working.
Compressor ran for app. 2mins- but did not effect height or fill airbags/ height control switch worked (Changed dash indicator light) which compressor ran/ but then stopped and whole system frozen.
PLEASE can anyone recommend a fix for this? - my alternative option is to bypass the system and introduce a manual valve system/ or to go to Coils.
by looking at the fault codes am I correct in thinking that it is not a solenoid, or compressor etc- as the faults logged are system wide ( meaning all are reporting fault) and for the reality that all have mechanically failed is simply not probably.
Air bag failure.
Symptoms:
1/ Height control wokring only intermittently.
2/ Rear starts bouncing around all over the place.
Checks: checked suspension , replaced shock absorbers (Non TEMS type), checked fuse's, relays, connections, switchs in console, plug connections in and under vehicle.
Only fault found was the RH air bag deteriorated and loosing air. (No diagnostic performed).
Action- replaced air bags/ checked air lines from tank to air bags, manually filled and driven for 200+ klms- no leaks.
Continuing symptoms- Heigh control working only intermittently and shuts down- Not filling air bags.
Checked system again- can not find any leaks/ checked all connections again- no apparent issues.
Sent Prado to mechanic to diagnose. Report as follows:
Faults:
DTC
C1727Damping Force control Actuator RR Circuit
C1728 Dampining Force Control Actuator RL Circuit
C1733 Height control colenoid RG Circuit malfunction
C1734 HEIGHT control Colenoid RL Circuit Malfunction
C1735 Exhaust Solenoid
C1741 Compressor Relay Coil Malfunction
C1744 Low pressure Tank Solenoid
C1751Continuious Current to Compressor Motor
C1761 AHC ECU Malfunction
They ran a clear codes and then drove and rescanned the system.
the only faults were as follows:
C1727 Damping Force Control Actuator RR Circuit
C1728 Damping force control actuator RL Circuit
He advised me to re-install the TEMS original shockies to overcome the remaining faults- (And possibly fix the system??)
I replaced/ re-installed my original shocks.
Outcome- no suprise..... No change . Air suspension still not working.
Compressor ran for app. 2mins- but did not effect height or fill airbags/ height control switch worked (Changed dash indicator light) which compressor ran/ but then stopped and whole system frozen.
PLEASE can anyone recommend a fix for this? - my alternative option is to bypass the system and introduce a manual valve system/ or to go to Coils.
by looking at the fault codes am I correct in thinking that it is not a solenoid, or compressor etc- as the faults logged are system wide ( meaning all are reporting fault) and for the reality that all have mechanically failed is simply not probably.
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