Powertrain Control Module (PCM) C3

2006 Isuzu Ascender S, 5.3 M, 4WDSECTION Powertrain Control Module (PCM) C3
WARNING: This page is about a different car, the 2007 Isuzu Ascender, 2007 GMC Envoy, 2007 Chevrolet TrailBlazer, and 2007 Buick Rainier. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Powertrain Control Module (PCM) C3 Connector End View
GM1283894Courtesy of GENERAL MOTORS CORP.
Powertrain Control Module (PCM) C3 Connector End Views

Connector Part Information 
  • OEM: 15437820
  • Service: 88953347
  • Description: 56-Way F Micro 64 Series Sealed (GY)
Terminal Part Information 
  • Pins: 1-2, 4, 6-7, 15, 17, 19-21, 25, 30-31, 33-37, 39, 43, 44, 45, 46, 47, -48, 50, 52
  • Terminal/Tray: 15359541/4
  • Core/Insulation Crimp: M/M
  • Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)
Powertrain Control Module (PCM) C3

Pin Wire Color Circuit No. Function
1 PK 1224 Transmission Fluid Pressure Switch Signal A
2 GY 773 Transmission Range Switch Signal C
3 - - Not Used
4 TN/WH 1669 HO2S Low Signal
5 - - Not Used
6 RD/BK 1228 PC Solenoid Valve High Control
7 YE/BK 1227 TFT Sensor Signal
8-14 - - Not Used
15 TN/BK 231 Oil Pressure Switch Signal
16 - - Not Used
17 BK 2762 Low Reference
18 - - Not Used
19 PU/WH 1668 HO2S High Signal
20 BK/WH 771 Transmission Range Switch Signal A
21 WH 687 3-2 Shift Solenoid Valve Control
22-24 - - Not Used
25 TN/BK 422 TCC Solenoid Valve Control
26-29 - - Not Used
30 RD 1226 Transmission Fluid Pressure Switch Signal C
31 YE 6787 Air Injection Reaction Control Valve #1 Control (K18)
32 - - Not Used
33 L-GN 1222 1-2 Shift Solenoid Valve Control
34 TN/BK 464 Delivered Torque Signal
35 YE/BK 1223 2-3 Shift Solenoid Valve Control
36 PU 114 Low Oil Pressure Switch Signal
37 D-GN/WH 428 EVAP Canister Purge Solenoid Control
38 - - Not Used
39 BN 418 TCC PWM Solenoid Valve Control
40-42 - - Not Used
43 D-BU 1225 Transmission Fluid Pressure Switch Signal B
44 L-GN/BK 822 VSS Low Signal
45 PU/WH 821 VSS High Signal
46 BK/WH 1423 HO2S Heater Low Control
47 OG/BK 463 Requested Torque Signal
48 L-BU/WH 1229 PC Solenoid Valve Low Control
49 - - Not Used
50 YE 772 Transmission Range Switch Signal B
51 - - Not Used
52 WH 776 Transmission Range Switch Signal P
53-56 - - Not Used
RENDER: 1.0x

NO RELATED

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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