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Severity: High Code type: Manufacturer-specific (Honda)

Honda P1362 Code: TDC Sensor No Signal

The PCM gets no signal at all from the top dead center (TDC) sensor; stalling or a no-start is likely.

At a glance

Severity: 4/5 – High4/5

Severity: High

Meaning
TDC Sensor No Signal
System
Ignition & Misfire · Powertrain
Safe to drive?
No — stop driving
Typical repair cost
$80–$3,500
DIY difficulty
Moderate

On older Hondas the PCM combines the crankshaft signal with a TDC signal to know which cylinder is coming up to fire. P1362 sets when the crank signal is present but the TDC line stays completely silent. With that reference gone many engines stall or refuse to start, particularly distributor-equipped Civics, Accords and CR-Vs where the TDC pickup, crank sensor and cylinder sensor share one housing, and later L-series Fit/Jazz engines with a separate Hall sensor on the head. Besides a dead sensor, a snapped timing belt produces exactly this code, because the camshaft and distributor stop turning while the crank still spins.

How to read P1362

How to read P1362P11233624
  1. P Powertrain
  2. 1 Manufacturer-specific
  3. 3 Ignition / misfire
  4. 62 Specific fault

Symptoms

  • Engine cranks normally but won't start
  • Sudden stall while driving, often after the engine is fully warm
  • No spark and no injector pulse during cranking
  • Check engine light stays on with the key in run
  • Tachometer doesn't move while cranking on some models

Possible causes

Ranked by how often each cause is behind this code (editorial estimate).

  1. TDC sensor failed completely, often inside the distributor 42%
  2. Open circuit in the sensor wiring or connector unplugged 17%
  3. No supply voltage or ground at the sensor 13%
  4. Timing belt broken or badly jumped so the camshaft isn't turning with the crank 12%
  5. Distributor drive or sensor rotor damaged 8%
  6. Shorted 5 V reference from another sensor pulling the signal down 5%
  7. PCM input fault 3%

Diagnosis step by step

Diagnostic flow: P13621Confirm the camshaft is turning2Check fuses and power at the sensor3Look for a signal while cranking4Check wiring to the PCM5Replace the sensor or distributorand verify

  1. Confirm the camshaft is turning

    Before buying a sensor, check the timing belt. On distributor engines, pop the cap and have a helper crank the engine: the rotor must turn. On others, remove the oil filler cap or upper belt cover and watch the cam or belt move while cranking.

    Tools: Flashlight, Screwdriver

  2. Check fuses and power at the sensor

    With the key on and the connector unplugged, measure battery voltage on the supply pin and a good ground; on Hall-type sensors the signal pin should show about 5 V from the PCM. A missing supply points to a fuse, the main relay or wiring, not the sensor.

    Tools: Multimeter

  3. Look for a signal while cranking

    Back-probe the signal wire with the connector plugged in. While cranking, the voltage should switch or pulse rapidly; a meter shows an average between the high and low values, a scope shows a clean square wave. A flat line with good power and ground condemns the sensor.

    Tools: Multimeter

  4. Check wiring to the PCM

    With the battery disconnected, check continuity of the signal wire from the sensor connector to the PCM and look for a short to ground. On distributor engines, inspect the harness where it bends near the distributor and the hot exhaust manifold.

    Tools: Multimeter

  5. Replace the sensor or distributor and verify

    Fit the new sensor, or the distributor assembly where the TDC pickup is integrated, mark and set the ignition timing to spec on distributor engines, then clear the code and confirm a normal start both cold and hot.

    Tools: OBD-II scanner, Screwdriver

Where the parts are

Ignition: coils and spark plugs per cylinder – P13621234567
Ignition: coils and spark plugs per cylinder
  1. 1Ignition coil
  2. 2Spark plug
  3. 3Fuel injector
  4. 4Camshaft sensor
  5. 5Crankshaft sensor
  6. 6Engine computer (ECM)
  7. 7Intake manifold

Repair options & costs

RepairDIY?Estimated cost
Reconnect or repair broken sensor wiring No $80–$300
Replace separate TDC/CMP sensor Yes $80–$250
Replace distributor with built-in TDC sensor Yes $250–$650
Timing belt replacement after it snapped (no internal damage) No $450–$1,000
Cylinder head repair after belt failure on an interference engine No $1,500–$3,500

Rough US estimates for parts and labor; shop rates vary by region. Not a quote.

Emissions / smog test impact

Will fail

A car with an active P1362 will fail an OBD emissions check, and in practice it may not make it to the station at all. After the repair, drive enough for the monitors to report ready.

Frequently asked questions

Why does my Honda crank but not start with P1362?

Without the TDC reference the PCM can't identify cylinder 1, so on many models it withholds spark and fuel. Rule out a broken timing belt first, then check the sensor's power, ground and signal.

Is P1362 always the sensor?

No. A snapped or slipped timing belt, an unplugged connector or a missing supply voltage all look exactly like a dead sensor to the PCM. A quick belt check and a voltage test save money.

Can I keep cranking the engine to get it started?

Avoid it. If the belt has broken on an interference engine, the damage is usually already done, and long cranking only drains the battery and overheats the starter.

The code came back right after I replaced the distributor. Why?

Check that the connector is fully seated and the new unit's pins match the harness. Also verify the timing belt alignment marks; a belt that jumped a few teeth can place the TDC signal where the PCM doesn't accept it.

Sources