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{Osprey CCM}
DTC Troubleshooting Data
Version: 2.0
Date: 28-Jul-17
Author: ERC
Page: 171 of 244
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TATA MOTORS Ltd.
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B1F1B-11:-
Solar Radiation Sensor Circuit - Circuit short to Ground
;
:
ISO Code
B1F1B- 11
Customer Symptom
System operates but with reduced sensitivity to conditions
Fault Effects (On Vehicle)
Solar load cannot be evaluated and solar compensation will
not be possible
Lamp Status (If Any)
NA
Fault Detection Condition
Solar Radiation Sensor Circuit - Circuit short to Ground
Normal Operating Condition
With the sensor connected to the harness and with Ignition
ON, check the voltage between pin no 1 & 2 of the sensor.
The voltage range should be in between 4.057 to 1.334 V
Probable Trouble Area
Sensor signal line short to ground or sensor is faulty
Healing Condition
NA
Component Details:
Solar sensors sends the current to control unit according to the intensity of sunlight. Stronger the incident sunlight, higher
the current.
Preliminary Checks:
Switch On the IGN & perform the following check.
1) Connect the Diagnostics tool & check the DTC fault code
2) Read ECU parameter value
sensor Solar Load Status
for solar load.