3-Pin 1-1452049-1 AMP Sealed Connector – Pressure Sensor / Throttle Pedal / Starter BMW

Direct-fit replacement for TE Connectivity / AMP part number 1-1452049-1, a 3-pin sealed connector used for cold air pressure sensor, throttle pedal position sensor, and starter circuit harness connections on BMW vehicles. The sealed design provides IP68 protection for sensor connections in exposed engine bay and underbody locations.

Key Specifications

• OEM Part Number: 1-1452049-1
• Pin Count: 3
• Seal Type: Fully sealed (IP68)
• Wire Gauge: 18 AWG (0.5 mm²)
• Wire Length: 5.5 inches (140 mm)
• Housing Material: PA66 glass-filled nylon
• Terminal Material: Copper alloy, tin-plated
• Current Rating: Up to 10A per pin
• Operating Temperature: -40°C to +125°C

Applications

• BMW cold air pressure sensor: Intake air pressure sensor harness on BMW turbocharged engines
• BMW throttle pedal position sensor: APPS harness connector on BMW drive-by-wire systems
• BMW starter circuit: Starter relay and ignition switch harness connections
• Compatible BMW platforms: 3 Series (E46/E90), 5 Series (E39/E60), X5 (E53/E70)

Fault Codes Linked to 1-1452049-1 Connector Failure

• P0106–P0108 – MAP/Boost Pressure Sensor circuit faults
• P0120 / P0220 – Throttle/Pedal Position Sensor A/B Circuit
• P2135 – Throttle/Pedal Position Sensor Voltage Correlation
• BMW-specific: 2A82 – Boost Pressure Sensor signal implausible; 2A9B – Throttle Pedal Sensor

Frequently Asked Questions

Q: Can a bad throttle pedal connector cause limp-home mode on BMW?
A: Yes. A corroded or open-circuit 1-1452049-1 connector at the throttle pedal sensor causes the DME (BMW ECU) to detect an APPS fault and activate reduced power mode (limp-home), limiting engine output to approximately 20–30% of normal.

Q: What diagnostic tool is needed for BMW fault codes?
A: Use BMW ISTA+ or a compatible scanner with BMW-specific protocols (INPA, Carly, or equivalent). Standard OBD2 scanners may not access all BMW DME modules.

Q: What crimping tool is needed?
A: Use a ratchet crimper rated for 18 AWG (0.5 mm²) AMP sealed terminals – Engineer PA-09 or equivalent.

Package Contents

1 × 3-Pin Sealed Connector (1-1452049-1) with 18 AWG wire and terminal insert