Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTC P0706/17090 - Trans Range Sensor CKT Range/Performance
1996 Audi A4 Base, StandardSECTION DTC P0706/17090 - Trans Range Sensor CKT Range/Performance
NOTE:
VAG 1551 scan tool is necessary to perform procedure.
- Ensure PCM coding is correct. See PCM CODING in this article. If PCM coding is correct, go to next step. If PCM coding was incorrect, erase DTC memory and test drive vehicle.NOTE: During next step, only look at fields identified in VAG 1551 display, ignore fields with an X.
- Using VAG 1551 scan tool, use READ MEASURING VALUE BLOCK mode, function 08, display group 04. With transmission selector lever in "P" or "N". VAG 1551 should display XXX_1X. Apply brake and put transmission selector lever in "1", "2", "3", "R" and "D". VAG 1551 should display XXX_0X. If VAG 1551 scan tool display did not change even though PCM coding is correct, go to next step. If VAG 1551 scan tool display was correct, erase DTC memory and test drive vehicle.
- Turn ignition off. Disconnect Powertrain Control Module (PCM) connectors. Connect VAG 1598/19 test box to PCM wiring harness. Terminal assignments of test box are identical to PCM connectors "A", "B", "C", "D" and "E".
- With ignition on, connect VAG 1527B voltage tester between test box sockets 11B (signal) and 10B (constant B+). Voltage tester should light up with transmission selector lever in "P" or "N", then go out in "1", "2", "3", "R" and "D". If voltage tester performs as specified, replace faulty PCM. Code new PCM and test drive vehicle. See PCM CODING and TEST DRIVE in this article. Recheck DTC memory and verify DTC does not set again. If DTC sets again, perform testing procedure again.
- If voltage tester lights up constantly or not at all, check wiring harness for a short to ground, short to B+, or open circuit between PCM connector B terminal No. 11 and multifunction switch (selector lever switch). See WIRING DIAGRAMS section. Erase DTC memory and test drive vehicle.
- If wiring harness is okay, check multifunction switch (selector lever switch).
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.