OBD Guide
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P17B1

Transmission Range Control Module System Voltage Performance

P17B1 is an OBD-II diagnostic trouble code meaning: Transmission Range Control Module System Voltage Performance. Common causes: trcm module malfunction, problems with wiring or connectors. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Inability to start the engine
  • Incorrect display of gear selector position
  • Gear shifting problems
  • Check Engine Light Is On
  • Activating transmission emergency mode

Causes

  • TRCM module malfunction
  • Problems with wiring or connectors
  • Short circuit in the circuit
  • Low battery voltage
  • Grounding problems

How to Fix

  1. Check battery voltage
  2. Inspect TRCM wiring and connectors
  3. Check the integrity of the module power supply circuit
  4. Test or replace TRCM
  5. Reset error and test drive

Related codes

P17B0P17B2P0705

FAQ

What does the P17B1 code mean?

P17B1 is an OBD-II diagnostic trouble code that indicates: Transmission Range Control Module System Voltage Performance

What causes a P17B1 error code?

The most common causes of P17B1 include: TRCM module malfunction; Problems with wiring or connectors; Short circuit in the circuit; Low battery voltage.

How do I fix a P17B1 diagnostic trouble code?

To fix P17B1: Check battery voltage. Inspect TRCM wiring and connectors. Check the integrity of the module power supply circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P17B1?

Limited driving only, diagnose soon

How much does it cost to fix P17B1?

The estimated repair cost for P17B1 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat