Engine-Codes - Ram - B1603 RAM

B1603 RAM - Right Solar Sensor

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

B1603 RAM Possible Causes

  • Faulty Right Solar Sensor
  • Right Solar Sensor harness is open or shorted
  • Right Solar Sensor circuit poor electrical connection
  • Faulty Heating Ventilation and Air Conditioning (HVAC) A/C Heater Module

How is the B1603 RAM code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Tech Notes

B1603-11 RIGHT SOLAR SENSOR CIRCUIT SHORT TO GROUND
B1603-12 RIGHT SOLAR SENSOR CIRCUIT SHORT TO BATTERY
B1603-92 RIGHT SOLAR SENSOR PERFORMANCE OR INCORRECT OPERATION

What is the cost to diagnose the B1603 RAM code

Labor: 1.0

The cost to diagnose the B1603 RAM code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

B1603 RAM Meaning

The Heating Ventilation and Air Conditioning (HVAC) A/C Heater Module uses a variety of sensors to adjust HVAC operation to obtain optimal performance. These sensors are continuously monitored by the A/C Heater Module to assure that they are in range. If the Right Solar Sensor falls out of predetermined ranges a Diagnostic Trouble Code (DTC) will set.

More Information

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