B1602 is outputted when there is the CAN line fail, IG key ON error and vehicle speed information error although the communication proceeds normally. This DTC is used to validate wire errors.
Item | Conditions for setting DTC | Possible Cause | |
DTC Strategy |
•
Check CAN communication | 1. Vehicle speed signal error (invalid) 2. Vehicle speed CAN signal is not received 3. IG circuit receives IG key "OFF" CAN signal while power is supplied 4. IG circuit receives IG CAN signal is not received while power is supplied 5. CAN line fail − Open/Short to 5V − Short to ground 6. CAN line error signal is applied (including the bus off status) 7. On the other CAN comm error unication line is detected | |
Enable Conditions |
•
IG key "ON" | ||
Threshold Value |
•
Information is not received continuously for 3sec | ||
Diagnostic Time |
•
100㎳ | ||
Fail-safe |
•
Prohibit the deployment
•
But, it operates normally when vehicle speed signal is received, IG CAN signal fail and H/W signal is applied | ||
Cancellation | Active DTC |
•
Soon as it recovers from the failure at IG key "ON"
•
Can be erased by GDS | |
History DTC |
•
Can be erased by GDS | ||
