Toggle Side Panel

Shopping Cart

No products in the basket.

Shopping Cart

No products in the basket.

Close search
Home / DTC / P0829 — 5-6 Shift

P0829 — 5-6 Shift

Detailed page for trouble code P0829.

35,619codes
59brands
11,925generic
23,694specific
All codes P-codes (Powertrain) B-codes (Body) C-codes (Chassis) U-codes (Network/User) Tesla Alerts
Reset
Code

P0829

Generic P — Powertrain

5-6 Shift

Brand: Generic
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Low, contaminated, or incorrect transmission fluid
  • Faulty 5-6 shift solenoid (or related solenoid pack)
  • Open/short/corroded wiring or poor connector at the solenoid or TCM
  • Faulty Transmission Control Module (TCM) or PCM software/calibration issue
  • Valve body sticking or internal hydraulic leaks (worn valve, spool, or bore)
  • Worn clutch pack or internal mechanical wear preventing engagement

Symptoms

  • Check Engine / Transmission warning lamp illuminated
  • Transmission will not shift into 6th gear or is delayed slipping between 5th and 6th
  • Harsh or erratic 5→6 upshift
  • Transmission stuck in limp/2nd gear mode on some vehicles
  • Reduced fuel economy at highway speeds
  • Unusual transmission noises during shifting

What to check

  • Read freeze-frame and all transmission-related codes; note vehicle speed, engine RPM and load when fault set
  • Verify reported gear commanded vs gear engaged (live data)
  • Check transmission fluid level, color and smell (overheating/burning)
  • Inspect wiring harness and connectors at transmission and TCM for corrosion, damage, or loose pins
  • Measure shift solenoid resistance and compare to manufacturer spec
  • Backprobe solenoid connector with a scan tool to confirm voltage/duty cycle when shift commanded

Signal parameters

  • Commanded gear (TCM) vs Actual gear (transmission)
  • Shift solenoid voltage and duty cycle (%) when 5→6 commanded
  • Shift solenoid resistance (ohms) — compare to spec
  • Transmission line pressure (psi or kPa) during shift event
  • Battery/charging voltage (V) during solenoid activation
  • Vehicle speed (kph/MPH) and engine RPM at time of fault

Diagnostic algorithm

  1. Retrieve DTCs and freeze-frame data; note if P0829 is stored with other transmission codes.
  2. Verify fluid level/condition; add or replace fluid if low or contaminated and clear codes; retest.
  3. Visually inspect wiring/connectors to shift solenoids and TCM; repair any damage or corrosion.
  4. With ignition off, measure resistance of the 5-6 shift solenoid and compare to spec. Replace solenoid if out of range.
  5. Backprobe solenoid connector with scan tool while commanding 6th gear; verify proper voltage/duty cycle and ground drive from TCM.
  6. If electrical control is good but shift not achieved, perform transmission line pressure test during shift — look for low pressure or delayed pressure rise.
  7. If pressure is low or valve operation is suspect, inspect valve body and spool valves; consider cleaning, solenoid replacement, or valve body service.
  8. If internal mechanical wear (clutch pack, drum) is suspected or pressure tests fail to isolate, refer to transmission specialist for disassembly/rebuild.
  9. After repairs, clear codes and perform extended road test to confirm proper 5→6 shift and absence of codes.

Likely causes

  • Faulty or intermittent shift solenoid for 5-6 shift
  • Low fluid level or degraded fluid causing poor hydraulic pressure
  • Damaged connector or chafed wiring to transmission solenoids
  • Contaminated valve body or stuck valve spool
  • TCM output driver fault or software error

Fault status

⚠️ Status
TCM detected failure or improper operation of the 5→6 shift circuit (commanded 6th gear not achieved or shift performance out of range). Could be electrical, hydraulic, or internal mechanical. Repair action required to restore proper shifting.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1 to 6 hours

Similar codes

P0758 P0760 P0735 P0736 P0741
10,695

The library contains 10,695 repair and diagnostic manuals. Choose a brand to open the full manual tree by year, model and trim.

ALFA ROMEO
89
AUDI
1,243
BMW
479
CADILLAC
206
CHEVROLET
917
CHRYSLER
193
DAEWOO
75
FIAT
26
GENESIS
207
HUMMER
138
HYUNDAI
371
ISUZU
229
JEEP
546
KIA
155
LAND ROVER
413
LEXUS
280
LINCOLN
166
MERCEDES-BENZ
856
MERCURY
296
MITSUBISHI
406
PORSCHE
136
TESLA
81
TOYOTA
2,209
TRIUMPH
131
VOLKSWAGEN
626
VOLVO
221
Your experience will help others
+100 karma for a short comment :)
Keep it short and practical. Up to 500 characters.
Send to email
Code

P0829

LAND ROVER P — Powertrain

Gear load 5-6

Brand: LAND ROVER
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Low, contaminated, or incorrect transmission fluid
  • Faulty 5-6 shift solenoid (or related solenoid pack)
  • Open/short/corroded wiring or poor connector at the solenoid or TCM
  • Faulty Transmission Control Module (TCM) or PCM software/calibration issue
  • Valve body sticking or internal hydraulic leaks (worn valve, spool, or bore)
  • Worn clutch pack or internal mechanical wear preventing engagement

Symptoms

  • Check Engine / Transmission warning lamp illuminated
  • Transmission will not shift into 6th gear or is delayed slipping between 5th and 6th
  • Harsh or erratic 5→6 upshift
  • Transmission stuck in limp/2nd gear mode on some vehicles
  • Reduced fuel economy at highway speeds
  • Unusual transmission noises during shifting

What to check

  • Read freeze-frame and all transmission-related codes; note vehicle speed, engine RPM and load when fault set
  • Verify reported gear commanded vs gear engaged (live data)
  • Check transmission fluid level, color and smell (overheating/burning)
  • Inspect wiring harness and connectors at transmission and TCM for corrosion, damage, or loose pins
  • Measure shift solenoid resistance and compare to manufacturer spec
  • Backprobe solenoid connector with a scan tool to confirm voltage/duty cycle when shift commanded

Signal parameters

  • Commanded gear (TCM) vs Actual gear (transmission)
  • Shift solenoid voltage and duty cycle (%) when 5→6 commanded
  • Shift solenoid resistance (ohms) — compare to spec
  • Transmission line pressure (psi or kPa) during shift event
  • Battery/charging voltage (V) during solenoid activation
  • Vehicle speed (kph/MPH) and engine RPM at time of fault

Diagnostic algorithm

  1. Retrieve DTCs and freeze-frame data; note if P0829 is stored with other transmission codes.
  2. Verify fluid level/condition; add or replace fluid if low or contaminated and clear codes; retest.
  3. Visually inspect wiring/connectors to shift solenoids and TCM; repair any damage or corrosion.
  4. With ignition off, measure resistance of the 5-6 shift solenoid and compare to spec. Replace solenoid if out of range.
  5. Backprobe solenoid connector with scan tool while commanding 6th gear; verify proper voltage/duty cycle and ground drive from TCM.
  6. If electrical control is good but shift not achieved, perform transmission line pressure test during shift — look for low pressure or delayed pressure rise.
  7. If pressure is low or valve operation is suspect, inspect valve body and spool valves; consider cleaning, solenoid replacement, or valve body service.
  8. If internal mechanical wear (clutch pack, drum) is suspected or pressure tests fail to isolate, refer to transmission specialist for disassembly/rebuild.
  9. After repairs, clear codes and perform extended road test to confirm proper 5→6 shift and absence of codes.

Likely causes

  • Faulty or intermittent shift solenoid for 5-6 shift
  • Low fluid level or degraded fluid causing poor hydraulic pressure
  • Damaged connector or chafed wiring to transmission solenoids
  • Contaminated valve body or stuck valve spool
  • TCM output driver fault or software error

Fault status

⚠️ Status
TCM detected failure or improper operation of the 5→6 shift circuit (commanded 6th gear not achieved or shift performance out of range). Could be electrical, hydraulic, or internal mechanical. Repair action required to restore proper shifting.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1 to 6 hours

Similar codes

P0758 P0760 P0735 P0736 P0741
413

Browse 413 LAND ROVER manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

LAND ROVER

Your experience will help others
+100 karma for a short comment :)
Keep it short and practical. Up to 500 characters.
Send to email

Report

Harassment or bullying behavior
Contains mature or sensitive content
Contains misleading or false information
Contains abusive or derogatory content
Contains spam, fake content or potential malware

Block Member?

Please confirm you want to block this member.

You will no longer be able to:

  • See blocked member's posts
  • Mention this member in posts
  • Invite this member to groups
  • Message this member
  • Add this member as a connection

Please note: This action will also remove this member from your connections and send a report to the site admin. Please allow a few minutes for this process to complete.

Report

You have already reported this .