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DTC C1800 Acceleration/Deceleration Monitor
 
 
cautionBefore replacing the ECU, ensure that the communication circuit is normal.
 
 
OPERATION
The ASC-ECU receives target acceleration/deceleration signal via CAN bus lines from the ACC-ECU and electric parking brake ECU.
 
 
 
DTC SET CONDITIONS
The ASC-ECU compares an actual acceleration/deceleration signal with the target acceleration/deceleration signal, which is transmitted from the ACC-ECU and electric parking brake ECU. The ASC-ECU will set this DTC when these signals are significantly different.
 
 
 
PROBABLE CAUSES
  • Malfunction of ASC-ECU
 
 
 
 
DIAGNOSIS
1. Check whether the DTC is set again.