LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Honda >> 2021 >> Pilot EX-L, FWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Audio Visual Systems - Testing & Troubleshooting >> Connector View >> Tuner-Amplifier Unit Connector For Inputs And Outputs (2019 2020)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Tuner-Amplifier Unit Connector For Inputs And Outputs (2019 2020)

Connector Index
Tuner-Amplifier Unit Connector A (24P)
Tuner-Amplifier Unit Connector B (17P)
Tuner-Amplifier Unit Connector C (2P)
Tuner-Amplifier Unit Connector D (2P)
Tuner-Amplifier Unit Connector E (5P)
Tuner-Amplifier Unit Connector F (2P) (With XM)

Tuner-Amplifier Unit Connector A (24P) (female terminals) 

GHH304271Courtesy of HONDA, U.S.A., INC.
Cavity Terminal Name Description
A1 PGND Ground for tuner-amplifier unit (G604)
A2 MIC GND Inputs sound signal from HFL microphone
A3 +B AUDIO AMP Continuous power source
A4 Not used - - -
A5 ANC F+ Inputs noise cancelling signal from ANC/active sound control unit
A6 ANC F- Inputs noise cancelling signal from ANC/active sound control unit
A7 MOST ECL 10*1
MOST ECL 4*2
MOST ECL 7*3
Inputs ECL signal
A8 ANC R+ Inputs noise cancelling signal from ANC/active sound control unit
A9 ANC R- Inputs noise cancelling signal from ANC/active sound control unit
A10 Not used - - -
A11 AUD F MIX Outputs audio mixing signal for front channels
A12 AUD F MIX GND Shield for terminal No. 11
A13 MIC SH Shield for terminals No. 2 and No. 14
A14 MIC SIG+ Inputs sound signal from HFL microphone
A15 Not used - - -
A16 AUX LCH Inputs auxiliary sound signal
A17 AUX SIG GND Ground for auxiliary sound signal
A18 AUX RCH Inputs auxiliary sound signal
A19 MOST ECL 12 Outputs ECL signal
A20 AUX SH Shield for terminals No. 16, No. 17, and No. 18
A21 HFT MUTE Outputs HFL microphone directivity switching signal
A22 AUX DET Detects connection for auxiliary jack assembly
A23 MIC PWR Power source for front HFL-ANC/active sound control microphone
A24 Not used - - -

*1: With rear entertainment

*2: Without rear entertainment and CD player

*3: Without rear entertainment, with CD player

Tuner-Amplifier Unit Connector B (17P) (female terminals) 

GHH304272Courtesy of HONDA, U.S.A., INC.
Cavity Terminal Name Description
B1 RR SPKR- Outputs sound signal for right rear door speaker
B2 RL SPKR- Outputs sound signal for left rear door speaker
B3 FL SP+ Outputs sound signal for driver's door speaker and left tweeter
B4 FR SP- Outputs sound signal for front passenger's door speaker and right tweeter
B5 SUBW- Outputs sound signal for subwoofer
B6 SUBW R SP- - - -
B7 RR SPKR+ Outputs sound signal for right rear door speaker
B8 RL SPKR+ Outputs sound signal for left rear door speaker
B9 FL SP- Outputs sound signal for driver's door speaker and left tweeter
B10 FR SP+ Outputs sound signal for front passenger's door speaker and right tweeter
B11 SUBW+ Outputs sound signal for subwoofer
B12 SUBW R SP+ - - -
B13 RADIO SW+B Outputs signal for ANC/active sound control unit switching on/off
B14 Not used - - -
B15 Not used - - -
B16 Not used - - -
B17 Not used - - -

Tuner-Amplifier Unit Connector C (2P) (female terminals) 

GHH304273Courtesy of HONDA, U.S.A., INC.
Cavity Terminal Name Description
C1 MOST TX+ Outputs MOST communication signal
C2 MOST TX- Shield for terminal No. 1

Tuner-Amplifier Unit Connector D (2P) (female terminals) 

GHH304274Courtesy of HONDA, U.S.A., INC.
Cavity Terminal Name Description
D1 MOST RX+ Inputs MOST communication signal
D2 MOST RX- Shield for terminal No. 1

Tuner-Amplifier Unit Connector E (5P) (female terminals) 

GHH304275Courtesy of HONDA, U.S.A., INC.
Cavity Terminal Name Description
E1 ANT +B Power source for roof antenna
E2 AM/FM Inputs AM/FM signal
E3 Not used - - -
E4 SH(AM/FM) Shield for terminal No. 2
E5 Not used - - -

Tuner-Amplifier Unit Connector F (2P) (female terminals) (With XM) 

GHH304276Courtesy of HONDA, U.S.A., INC.
Cavity Terminal Name Description
F1 SAT Inputs satellite/terrestrial signal
F2 SH (SAT) Shield for terminal No. 1