Pz071 Wiring Diagram Extra Quality: Toyota

| Output Pin | Function | Source from PZ071 | |------------|----------|--------------------| | 1 | LH Turn + Stop | Combined (Red + Yellow internally) | | 2 | Ground | White | | 3 | RH Turn + Stop | Green + Yellow | | 4 | Tail / Running | Brown |

Many later-model PZ071 units have a QR code sticker inside the main access panel. Scanning this with a smartphone often links directly to a factory PDF—though the quality varies by serial number.

Once you have your high-quality image, here is how to read it. A genuine extra quality diagram will clearly show three distinct zones: toyota pz071 wiring diagram extra quality

Vehicle 7-pin               PZ071 Module                Trailer 4-pin
─────────────              ──────────────              ─────────────
Pin1 (White)  ────────►    GND Terminal    ────────►    Pin2 (Ground)
Pin2 (Red L)  ────────►    Diode + Relay   ────┬────►   Pin1 (L+Stop)
Pin4 (Yellow Brake)─────►  Logic Combiner ─────┘
Pin3 (Green R) ────────►   Diode + Relay   ────┬────►   Pin3 (R+Stop)
Pin4 (Yellow Brake)────────────────────────────┘
Pin5 (Brown)  ────────►    Direct Pass     ────────►    Pin4 (Tail)
Pin6 (Blue Rev)────────►   (Optional NC)
Pin7 (Black +12V)───────►   Power for relays

The diagram includes tiny reference numbers (CN1, CN2, F1, F2, TR1). In a grainy image, a decimal point or a dash can disappear, causing you to connect a thermistor to a fuse block.

Step 1 – Verify kit version – PZ071-xxxxx suffix matters (e.g., PZ071-42010 vs 42030). Match with your VIN. | Output Pin | Function | Source from

Step 2 – Print at 100% scale – Do not zoom to fit. Use A3 paper if needed.

Step 3 – Identify vehicle side connectors – Locate BCM, radio, or tail lamp connectors using the diagram’s reference photos. The diagram includes tiny reference numbers (CN1, CN2,

Step 4 – Use a multimeter – Even with an extra-quality diagram, confirm +12V, ground, and CAN bus voltages (CAN H ~2.7V, CAN L ~2.3V ignition on).

Step 5 – Perform a dry fit – Connect module without final crimping. Test sensors/reverse trigger before reassembling dash panels.