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Home >> Isuzu >> 2007 >> Ascender 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 4.2L - Introduction (2 Of 2) >> Component Locator >> Powertrain Control Module Connectors >> Powertrain Control Module (PCM) C1
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Powertrain Control Module (PCM) C1

Fig 1: Powertrain Control Module (PCM) C1 Connector End View
GM1228485Courtesy of GENERAL MOTORS CORP.
Powertrain Control Module (PCM) C1 Connector End Views

Connector Part Information 
  • OEM: 15452125
  • Service: 88953346
  • Description: 56-Way F Micro 64 Series Sealed (BU)
Terminal Part Information 
  • Pins: 3, 6-8, 11-13, 16-24, 26-32, 34, 37-38, 40-41, 43, 46-51, 54-56
  • Terminal/Tray: 15359541/4
  • Core/Insulation Crimp: M/M
  • Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)
Powertrain Control Module (PCM) C1

Pin Wire Color Circuit No. Function
1-2 - - Not Used
3 GY/BK 1694 4WD Low Signal (NP8)
4-5 - - Not Used
6 D-GN/WH 459 A/C Compressor Clutch Relay Control
7 BN 1271 Low Reference
8 PU 1272 Low Reference
9-10 - - Not Used
11 GY/BK 87 Cruise Control Resume/Accel Switch Signal (K34)
12 PU 1589 Fuel Level Sensor Signal
13 PK 839 Ignition 1 Voltage
14-15 - - Not Used
16 D-GN 1049 PCM Class 2 Serial Data
17 GY 2700 5-Volt Reference
18 PK 1020 Ignition 0 Voltage
19 PK 439 Ignition 1 Voltage
20 OG 440 Battery Positive Voltage
21 D-GN/WH 817 Vehicle Speed Signal
22 WH 1310 EVAP Canister Vent Solenoid Control
23 D-BU 2364 Cooling Fan Speed Signal
24 D-GN 890 Fuel Tank Pressure Sensor Signal
25 - - Not Used
26 RD/BK 380 A/C Refrigerant Pressure Sensor Signal
27 D-BU 1161 APP Sensor 1 Signal
28 D-BU 84 Cruise Control Set/Coast Switch Signal (K34)
29 OG/BK 510 Low Reference
30 WH/BK 1164 5-Volt Reference
31 WH 121 Engine Speed Signal
32 L-BU 1320 CHMSL Supply Voltage/Stop Lamp Supply Voltage (K34)
33 - - Not Used
34 BN 436 AIR Pump Relay Control (K18)
35-36 - - Not Used
37 D-GN/WH 465 Fuel Pump Relay Control
38 YE 5991 Powertrain Relay Coil Control
39 - - Not Used
40 BN/WH 419 MIL Control
41 L-BU 1162 APP Sensor 2 Signal
42 - - Not Used
43 TN 1274 5-Volt Reference
44-45 - - Not Used
46 PU 420 TCC Brake Switch/Cruise Control Release Signal
47 GY 2709 5-Volt Reference
48 YE/BK 625 Starter Enable Relay Control
49 GY 397 Cruise Control On Switch Signal (K34)
50 PU 806 Crank Voltage
51 WH/BK 2366 Cooling Fan Clutch Control
52-53 - - Not Used
54 D-GN 1433 PNP/Clutch Start Switch Signal
55 BK 2759 Low Reference
56 BK 2751 Low Reference
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