Parts for your 2017 Honda Cr-v-Throttle position sensors

2017 Honda CR‑V throttle position sensors (TPS): what they do and when to replace

Based on Honda’s 2017 CR‑V service information for the PGM‑FI electronic throttle control system and typical Honda parts catalogues, this model is fitted with throttle position sensors. Specifically, the TPS is built into the electronic throttle body as dual tracks (often called TP Sensor A/B), and the accelerator pedal carries a separate accelerator pedal position (APP) sensor. It isn’t a standalone, cable-era sensor you swap by itself, on this CR‑V it’s integral to the throttle body assembly.

Those dual TPS tracks tell the engine control unit (ECU) exactly how far the throttle plate is open. The ECU uses that signal to manage fuelling, ignition timing, turbo boost control on the 1.5‑litre models, CVT ratio decisions, cruise control, and stability/traction systems. Honda uses two TPS signals for redundancy, the ECU constantly cross‑checks them for safety and smooth drivability.

There’s no scheduled replacement interval for the TPS on a 2017 CR‑V. In normal service it’s a fit‑and‑forget component, but issues do crop up with age, moisture ingress, wiring damage, or heavy carbon build‑up around the throttle plate. Typical tell‑tales include:

• Surging, flat spots, or hesitant take‑off under light throttle
• Erratic idle, stalling when coming to a stop, or limp‑home behaviour
• Check Engine light with codes like P0121, P0122, P0123 or correlation codes such as P2135

Good servicing practice is simple. Keep the throttle body clean if idle quality drops, but don’t drown the sensor area with harsh solvents. Use proper throttle body cleaner and a lint‑free cloth, bonnet up and battery disconnected if advised by the workshop manual. After cleaning or any throttle body work, perform a throttle/idle learn procedure with a scan tool (or the factory key‑on sequence where applicable) so the ECU relearns its stops. A battery on its last legs can cause flaky sensor readings too, so check voltage if you’re chasing intermittent faults.

If the TPS fails, the fix on this model is usually to replace the throttle body assembly (the sensor isn’t normally serviced separately). A technician will inspect the harness and connectors, swap the unit with a new gasket, torque fasteners to spec, and complete an idle/throttle learn. Expect roughly an hour of labour, give or take. It’s also smart to ask the workshop to check for any ECU software updates that refine throttle behaviour. For 1.5‑litre turbo and 2.4‑litre variants alike, using quality parts and following the factory relearn process keeps throttle response crisp and fuel economy on point over many thousands of kilometres.

Does the 2017 CR‑V have a separate TPS I can replace by itself?

No. On this model the TPS is integrated into the electronic throttle body as dual sensors. If the TPS is diagnosed faulty, the usual repair is replacing the throttle body assembly. The accelerator pedal has its own APP sensor, which is also separate from the throttle body.

Do I need to do a relearn after cleaning or replacing the throttle body?

Yes. A throttle/idle learn lets the ECU recalibrate the throttle plate positions. After cleaning or replacing the throttle body, a workshop scan tool procedure (or the Honda key‑on/idle learn routine where specified) helps restore a stable idle and smooth tip‑in.

What fault codes point to TPS trouble on a 2017 CR‑V?

Common codes include P0121, P0122 and P0123 (range/performance, low, high) and P2135 (correlation between TPS A/B). You might also see related electronic throttle control or APP sensor codes. Proper diagnosis should include live data to confirm both TPS tracks agree and the wiring is sound.