Transmission Speed Sensor, Checking

Special tools and workshop equipment required 

• Multimeter VAG 1526 or Multimeter VAG 1715
• Connector test kit VAG 1594
• Wiring diagram

Test requirements 

• Respective fuses in fuse box must be OK: Refer to appropriate SYSTEMS WIRING DIAGRAM
• Battery voltage must be at least 11.5 volts.
• Ground (GND) connections to transmission must be OK.
• Selector lever must be in P position.
• Ignition switched off.

Checking wires to Transmission Control Module (TCM) 

-- Connect test box to control module wiring harness, connect test box for wiring test.

-- Disconnect 8-pin harness connector (arrow -3-).

-- Check wires between test box and 8-pin connector to Transmission Control Module (TCM) for open circuit according to wiring diagram.

Terminal 3 + socket 51

Terminal 4 + socket 39

Wire resistance: max. 1.5 Ω

-- Check wires for short circuit to each other.

Specified value: ∞ Ω

If no malfunctions are found in wires:

-- Replace Sensor for transmission RPM -G182-.

Final Procedures 

After the repair work, the following work steps must be performed in the following sequence:

1. Check the DTC memory. Refer to DIAGNOSTIC MODE 03 - READ DTC MEMORY .
2. If necessary, erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .
3. If the DTC memory was erased, generate readiness code. Refer to READINESS CODE .