B1850

DTC B1850

DTC Detecting Condition and Trouble Area






Circuit Diagram










DTC Troubleshooting

1. DTC check

Clear DTC. DTC Clearance
Confirm that ignition mode of keyless push start system is in "OFF".
Push engine switch to change ignition mode of keyless push start system to "ON".
Check DTC. DTC Check

Is DTC B1850 still detected?
YES -
Go to Step 2.
NO -
Intermittent trouble. Check for intermittent trouble. Intermittent Connection and Poor Contact Inspection

2. LIN communication circuit check

Confirm that ignition mode of keyless push start system is in "OFF".
Disconnect combination meter and parking sensor system control module connectors.
Check for proper connection to combination meter and parking sensor system control module terminals.
If connections are OK, check circuit between combination meter connector and parking sensor system control module connector for open circuit, short to ground or short to power supply.

Are they in good condition?
YES -
Replace combination meter and recheck DTC. Service and Repair
If DTC B1850 is detected again, replace parking sensor system control module. Service and Repair
NO -
Repair LIN communication circuit.