The Smartkey unit controls the IGN1 output & input power and the IG1 relay.
It is represented The DTC "B2120 SMK IGN1 Control output Fault" in a Smartkey unit(SMK IMMO Unit) for the IGN1 output circuit short to Battery/Ground or the IGN1 input circuit malfunction.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Monitoring the DTC by checking the voltage.
•
Check the IGN1 input/output line status. | 1. The state of detecting malfunction when IGN1 works 2. IGN1 output wire defects 3. IGN1 Relay faults or loose connection 4. IGN1 fuse short 5. IGN1 input wire defects |
Enable Conditions |
•
Though the SMK Unit makes output on status, the circuit of output or input is off.
•
Though the SMK Unit makes output off status, the circuit of output or input is on. | |
Threshold Value |
•
IGN1 output wire defects
•
IGN1 Relay faults or loose connection
•
IGN1 fuse short
•
IGN1 input wire defects | |
Diagnostic Time |
•
Detect immediately after occurring the DTC | |
DTC Erasing Time |
•
Erase immediately after requesting to clear the related DTC |
