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 rear blower motor relay.?
32. Turn the ignition switch to LOCK (0).
33. Check for continuity between rear blower motor relay 4P socket terminal No. 3 and body ground.
Is there continuity?
YES -
Repair an open in the GRY wire between the rear blower motor relay and the blower motor.?
NO -
Check for an open in the wire between the rear blower motor relay and body ground. If the wire is OK, check for poor ground at G304.?
B1225
DTC Troubleshooting: B1225 (A and AUTO)
DTC B1225 or DTC indicator A and AUTO:
An Open in the In-Car 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 B1225 or A and AUTO indicated?
