C1708 GMC Code - Right Rear Center Sensor Circuit Short to Battery
Quick Answer
Parking Aid Systems consist of the following: - Four ultrasonic parking aid sensors (located in the rear bumper) - Parking aid speaker-audible warning tone - Parking Aid Module (PAM) - Parking aid switch The parking aid system detects objects behind the vehicle when the vehicle reverse gear select input to the control module enabled.The PAM does this by calculating the distance to an object by the use of four ultrasonic sensors mounted in the rear bumper. Common causes include Faulty Right Rear Sensor, Right Rear Sensor harness is open or shorted to ground, Right Rear Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- C1708 GMC indicates Right Rear Center Sensor Circuit Short to Battery.
- Common causes
- Common causes include Faulty Right Rear Sensor, Right Rear Sensor harness is open or shorted to ground, Right Rear Sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code C1708 GMC Description
- Four ultrasonic parking aid sensors (located in the rear bumper)
- Parking aid speaker-audible warning tone
- Parking Aid Module (PAM)
- Parking aid switch
The parking aid system detects objects behind the vehicle when the vehicle reverse gear select input to the control module enabled.The PAM does this by calculating the distance to an object by the use of four ultrasonic sensors mounted in the rear bumper. The ultrasonic field is emitted in a semicircular area around the rear of the vehicle. The sensors can detect objects approximately 1.8 m (5.9 ft) to the rear of the vehicle, 50 cm (1.6 ft) to the rear side of the vehicle, and 16 cm (6 in) above ground. A 750 kHz variable warning tone is generated from a speaker located inside the rear RH quarter trim panel. The speaker increases its warning tone rate as the vehicle gets closer to an obstacle. When an object is detected within 25 cm (10 in) of the sensors, the warning tone becomes continuous.
The parking aid system is enabled when the vehicle ignition is in RUN and the reverse (R) gear is selected. The parking aid disabled indicator will illuminate for three seconds when the ignition is turned to RUN. The system can be disabled by depressing the parking aid disable switch on the instrument panel. The parking aid system will indicate it is disabled by illuminating the parking aid disabled indicator. The system will always enable when the ignition is turned to RUN, or entry into reverse (R).
The parking aid system will be disabled if a fault is detected in one of the four sensors, the parking aid speaker or the parking aid module. This will be indicated by the parking aid disabled indicator being illuminated.
What are the Possible Causes of the DTC C1708 GMC?
- Faulty Right Rear Sensor
- Right Rear Sensor harness is open or shorted to ground
- Right Rear Sensor circuit poor electrical connection
How to Fix the DTC C1708 GMC?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C1708 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about C1708 GMC Code
1. What does the OBDII code C1708 mean for a GMC vehicle?
C1708 indicates a "Right Rear Center Sensor Circuit Short to Battery," meaning there is an electrical issue with the sensor in the right rear center, likely due to a short circuit.
2. What are the common symptoms of the C1708 code?
Symptoms may include malfunctioning parking sensors, warning alerts from the parking assist system, or inconsistent sensor readings when reversing.
3. What causes the C1708 code to appear?
The most common causes are damaged wiring, a short circuit in the sensor circuit, a faulty sensor, or corrosion in the electrical connectors.
4. Can I continue driving with a C1708 code?
Yes, you can drive with this code, but the parking assist system may not function properly, increasing the risk of collisions when reversing.
5. How do I diagnose the C1708 code?
Start by inspecting the right rear center sensor and its wiring for visible damage or corrosion. Use a multimeter to test the circuit for continuity and check for short circuits.
6. What tools are needed to fix the C1708 code?
You’ll typically need a multimeter, a scan tool, replacement wiring or sensors (if necessary), and basic hand tools for repairs.
7. How much does it cost to repair the C1708 code?
The cost depends on the issue. Replacing a sensor may cost $50–$150, while repairing damaged wiring could be less if done yourself.
8. Can a C1708 code clear itself?
No, the code will not clear itself. The underlying issue must be resolved, and the code can then be cleared with an OBDII scan tool.
9. Is the C1708 code specific to GMC vehicles?
While C1708 is commonly used in GMC vehicles to indicate this issue, similar codes may appear on other makes with different descriptions.
10. What steps should I take to fix the C1708 code?
Inspect the sensor and wiring, repair or replace damaged components, and clear the code with an OBDII scanner. If the issue persists, consult a professional mechanic.
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