Acura TSX / Honda Accord CL. Manual — part 933

the A/T control system. The other terminal voltage and measuring conditions are described in Fuel and
Emission.

Fig. 43: Identifying PCM Connector Terminals

Fig. 44: PCM Connector A (31P) Inputs & Outputs

2004 Acura TSX

2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed

Fig. 45: PCM Connector C (22P) Inputs & Outputs

Fig. 46: PCM Connector C (22P) Inputs & Outputs

2004 Acura TSX

2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed

Fig. 47: PCM Connector D (17P) Inputs & Outputs

Fig. 48: PCM Connector E (31P) Inputs & Outputs

HYDRAULIC CONTROLS

Valve Bodies

The valve body includes the main valve body, the regulator valve body, and the servo body. The ATF pump is
driven by splines on the left end of the torque converter which is attached to the engine. Fluid flows through the
regulator valve to maintain specified pressure through the main valve body to the manual valve, directing
pressure to the shift valves and to each of the clutches via the solenoid valves. The shift solenoid valves A, B,
C, D, and E are bolted on the servo body. The A/T clutch pressure control solenoid valves A, B, and C are
mounted on the outside of the transmission housing.

2004 Acura TSX

2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed

Fig. 49: Identifying Valve Body Components

Main Valve Body

The main valve body contains the manual valve, the shift valves A, B, C, and E, the relief valve, the lock-up
control valve, the cooler check valve, the servo control valve, and the ATF pump gears. The primary function of
the main valve body is to switch fluid pressure on and off and to control hydraulic pressure going to the
hydraulic control system.

2004 Acura TSX

2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed