P1194

Code

DAEWOO P — Powertrain

ETS LIMPHOME TPS2 POS. MAL.

Brand: DAEWOO

Type: P — Powertrain

Views: UK: 23 EN: 27 RU: 24

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Page language: EN

Read trouble codes and freeze frame data with a capable scan tool
Confirm battery voltage is within normal range (12.4–14.5 V) during tests
Visually inspect TPS/throttle body connector and wiring for corrosion, damage, or loose pins
Monitor live data: TPS1 and TPS2 voltages/percent and compare at closed throttle and WOT
Perform a wiggle test on wiring while watching live data for intermittent changes
Check for additional related codes (e.g., throttle actuator or sensor disagreement codes)

TPS2 nominal voltage (key ON, engine OFF): approx. 0.5 V at closed throttle to ~4.5 V at WOT (model-dependent)
TPS1/TPS2 correlation: one sensor typically increases while the other decreases or both follow specific ramp patterns — they must be consistent and within specified tolerance
Reference voltage to TPS: typically ~5 V regulated by ECU; reference should be stable
Signal ground continuity: near 0 ohms to chassis ground at harness connector

Retrieve all stored codes and freeze frame data; note any other throttle or sensor codes.
Verify battery voltage and good grounds. Recharge or support battery if low before testing.
Visually inspect throttle body connector, pins and wiring for corrosion, bent pins or water ingress. Repair as needed.
Using a scan tool, observe live TPS1 and TPS2 voltages/percent with key ON engine OFF. With closed throttle, verify voltages at expected idle/closed values; slowly open throttle and watch for smooth, monotonic change in both sensors.
Compare TPS1 vs TPS2 behavior — they must correlate per manufacturer spec (no sudden jumps or opposite unexpected behavior).
Perform wiggle test on wiring and connector while watching live data for intermittent faults. Backprobe connector to measure reference voltage, signal, and ground. Repair any open/shorts.
Inspect and clean throttle body if carbon build-up is present; ensure throttle plate moves freely and returns to closed position smoothly.
If wiring and connector are good but TPS2 signal is out of specification or intermittent, replace TPS or entire throttle body assembly per service manual.
After repairs, clear codes and perform throttle relearn/adaptation procedure if required by manufacturer. Test drive and re-scan to confirm the code does not return.
If fault persists after sensor/throttle body replacement, consider ECM/ETS module diagnosis by a specialist.

Loose/corroded connector at throttle body or TPS2
TPS2 internal failure (out of spec voltage or intermittent)
Wiring chafed/shorted between TPS2 and ECM
Carbon build-up causing throttle plate to stick and produce inconsistent sensor readings
Failed throttle body assembly requiring replacement

⚠️ Status

ETS limp-home mode triggered due to TPS2 position malfunction (invalid/inconsistent TPS2 signal).

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1-3 hours

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