OBD Guide
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P17B2

Transmission Range Control Module System High Voltage

P17B2 is an OBD-II diagnostic trouble code meaning: Transmission Range Control Module System High Voltage. Common causes: transmission range control module (trcm) malfunction, damaged wiring harness or poor connections. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Incorrect display of gear selector position on the instrument panel
  • Gear shifting problems
  • The car may not start
  • Transmission transition to emergency mode
  • Check Engine light comes on

Causes

  • Transmission Range Control Module (TRCM) malfunction
  • Damaged wiring harness or poor connections
  • Relay or fuse problems
  • Short circuit in the circuit
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check fuses and relays associated with TRCM
  2. Inspect the wiring harness for damage
  3. Check the voltage at the module connectors
  4. Test or replace the range control module
  5. Check and, if necessary, replace the engine control unit

Related codes

P17B0P17B1P17B3

FAQ

What does the P17B2 code mean?

P17B2 is an OBD-II diagnostic trouble code that indicates: Transmission Range Control Module System High Voltage

What causes a P17B2 error code?

The most common causes of P17B2 include: Transmission Range Control Module (TRCM) malfunction; Damaged wiring harness or poor connections; Relay or fuse problems; Short circuit in the circuit.

How do I fix a P17B2 diagnostic trouble code?

To fix P17B2: Check fuses and relays associated with TRCM. Inspect the wiring harness for damage. Check the voltage at the module connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P17B2?

Do not drive — repair immediately

How much does it cost to fix P17B2?

The estimated repair cost for P17B2 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat