Is there battery voltage?
YES -
Go to step 32.
NO -
Repair an open in the wire between the No. 30 (10 A) fuse in the under-dash fuse/relay box and the front blower motor relay.?
32. Turn the ignition switch to LOCK (0).
33. Check for continuity between front blower motor relay 4P socket terminal No. 3 and body ground.
Is there continuity?
YES -
Repair an open in the WHT wire between the front blower motor relay and the blower motor.?
NO -
Check for an open in the wire between the front blower motor relay and body ground. If the wire is OK, check for poor ground at G202.?
D and Auto
DTC Troubleshooting: B1228 (D and AUTO)
DTC B1228 or DTC indicator D and AUTO:
A Short in the Outside Air Temperature Sensor Circuit
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0) and then back to ON (II).
3. Do the self-diagnostic function with the HDS or the climate control unit.
4. Check for DTCs.
Is DTC B1228 or D and AUTO indicated?
YES -
Go to step 5.
NO -
Intermittent failure.?
