Suzuki GRAND VITARA JB416 Service Manual page 430

10B-10 Body Electrical Control System:
DTC Troubleshooting
Step
1 Outside air temperature sensor check
1) Turn ignition switch to OFF position.
2) Disconnect connector from outside air temperature
sensor.
3) Check outside air temperature sensor for resistance
referring to "Outside Air Temperature Sensor Inspection
(If Equipped): in Section 9C in related manual".
Is it in good condition?
2 Outside air temperature sensor circuit check
1) Disconnect connector from BCM and check for proper
terminal connection to BCM connector.
2) If connections are OK, check outside air temperature
sensor circuit for open, short and high resistance.
Is each circuit in good condition?
Action Yes
Go to Step 2.
Substitute a known-
good BCM (included in
junction block
assembly) and recheck.
No
Replace outside air
temperature sensor.
Repair circuit.