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Home >> Mercury >> 2008 >> Milan Base, 2.3 Z, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Automatic Transaxle/Transmission - AISIN Aw21) >> Diagnostic Tests >> Transaxle Connector Layouts

Transaxle Connector Layouts

WARNING: This page is about a different variant/trim than selected.
Fig 1: Transaxle Bulkhead Electrical Connector
GF0017745
Pin Number Circuit Circuit Function
1 - Pressure Control Solenoid A (PCA) ground
2 - Shift Solenoid B (SSB)
3 - PCA signal
4 - Torque Converter Clutch (TCC) ground
5 - Shift Solenoid A (SSA)
6 - NOT USED
7 - Transmission Fluid Temperature (TFT) ground
8 - TFT
9 - TCC signal
10 - Shift Solenoid C (SSC) ground
11 - SSC signal
12 - Turbine Shaft Speed (TSS) sensor signal
13 - TSS sensor signal ground
14 - Shift Solenoid E (SSE) signal
15 - NOT USED
16 - Shift Solenoid F (SSF) ground
17 - Shift Solenoid D (SSD) signal
18 - SSD ground
19 - Output Shaft Speed (OSS) sensor signal
20 - OSS sensor signal ground
21 - SSF signal
22 - SSE ground
Fig 2: Transmission Range (TR) Transmission Control Module (TCM) C1533 (A) Vehicle Harness
GF0017746Courtesy of FORD MOTOR CO.
Pin Number Circuit Circuit Function
1 - Battery feed
2 - NOT USED
3 - NOT USED
4 - NOT USED
5 - Start lock signal out
6 - Controller Area Network (CAN) -
7 - NOT USED
8 - NOT USED
9 - Transmission Control Module (TCM) ground
10 - NOT USED
11 - Ignition switch signal input
12 - NOT USED
13 - NOT USED
14 - CAN +
15 - NOT USED
16 - NOT USED
Fig 3: Transaxle Control Module Terminal Testing
GF0017747Courtesy of FORD MOTOR CO.
NOTE: For testing, place the positive lead on the terminal with the + sign and place the negative lead on the terminal with the - sign.
Pin Number Pin Acronym Descrip- tion Input / Output to Trans- mission Control Module (TCM) Measure pins Condition For Testing Reference Value
A1 B+ Battery voltage - +A1 to ground Hot at all times 10-14 volts
A5 STLK Start lock signal output Output +A5 to -A9 Ignition ON in PARK
Ignition ON in other than PARK
0-0.8 volt
9-14 volts
A6 CAN L Controller Area Network (CAN) communi- cation low Input/output +A6 to -A9 Engine idling -
A7 LIN LIN line communi- cation signal Input +A7 to -A9 - -
A8 CAN H Controller Area Network (CAN) communication high Input/output +A8 to -A9 Engine idling -
A9 GRND Transmission Control Module (TCM) ground - +ground to chassis ground - -
A11 IG Ignition switch signal input Input +A11 to -A9 Ignition ON 10-14 volts
A14 K Diagnostic signal Input/output +A14 to -A9 - -
B1 PCA ground Pressure Control Solenoid A (PCA) ground (SLTG) - - - -
B2 SSB Shift Solenoid B (SSB) (S2) Output +B2 to ground Vehicle in PARK, engine idling 0-1.5 volts
B3 PCA PCA Output +B3 to -B1 Vehicle in PARK, engine idling -
B4 TCC solenoid ground Torque Converter Clutch (TCC) solenoid ground (SLUG) - - - -
B5 SSA Shift Solenoid A (SSA) (S1) Output +B5 to ground Vehicle in PARK, engine idling 0-1.5 volts
B7 TFT ground Transmission Fluid Temperature (TFT) sensor ground (OTG) - - - -
B8 TFT TFT sensor (OT) Input +B8 to -B7 TFT at 10°C to 110°C (50°F to 230°F) 4.0 to 0.0 volts
B9 TCC TCC solenoid (SLU) Output +B9 to -B4 Vehicle in PARK, engine idling -
B10 SSC ground Shift Solenoid C (SSC) ground (SLC1G) - - - -
B11 SSC SSC (SLC1) Output +B11 to -B10 Vehicle in PARK, engine idling -
B12 ISS Input shaft speed sensor signal (NIN) Input +B12 to -B13 Vehicle in PARK, engine idling -
B13 ISS ground Input shaft speed sensor signal (NIN) - - - -
B14 SSE Shift Solenoid E (SSE) Output +B14 to -B22 Vehicle in PARK, engine idling -
B16 SSF ground Shift Solenoid F (SSF) ground (SLB1G) - - - -
B17 SSD Shift Solenoid D (SSD) (SLC2) Output +B17 to -B18 Vehicle in PARK, engine idling -
B18 SSD ground SSD ground (SLC2G) - - - -
B19 OSS Output Shaft Speed (OSS) sensor signal (SP+) Input +B19 to -B20 Vehicle speed approximately 20 km/h (12 mph) -
B20 OSS ground OSS sensor ground (SP-) - - - -
B21 SSF SSF (SLB1G) Output +B21 to -B16 Vehicle in PARK, engine idling -
B22 SSE ground SSE ground (SLC3G) - - - -