Audio-Navigation Unit Connector A (24P)
Audio-Navigation Unit Connector A (24P)
TERMINALS DESCRIPTION CHART
| Cavity | Wire Color | Terminal Name | Description | Voltage (about) | Symptom | ||||
|---|---|---|---|---|---|---|---|---|---|
| A1 | BRN | MAIN GND | Ground for audio-navigation unit (G502) | 0V | If open: Display picture goes out. If short to ground: No effect on system. | ||||
| A2 | Not used | Not used | -- | -- | -- | ||||
| A3 | ORN | + B | Continuous power source | Battery voltage | If open: Display picture goes out. If short to ground: Blows fuse No. B15 (20 A) in the under-hood fuse/relay box. | ||||
| A4 | Not used | Not used | -- | -- | -- | ||||
| A5(2) | BRN | RL PRE + | Outputs sound signal for left rear speaker(s) | -- | If open/short to ground: No sound is heard from left rear speaker(s). | ||||
| A6(2) | BLU | RL PRE- | Outputs sound signal for left rear speaker(s) | -- | If open/short to ground: No sound is heard from left rear speaker(s). | ||||
| A7 | Not used | Not used | -- | -- | -- | ||||
| A8 | Not used | Not used | -- | -- | -- | ||||
| A9(2) | PNK | RR PRE+ | Outputs sound signal for right rear speaker(s) | -- | If open/short to ground: No sound is heard from right rear speaker(s). | ||||
| A10(2) | PUR | RR PRE- | Outputs sound signal for right rear speaker(s) | -- | If open/short to ground: No sound is heard from right rear speaker(s). | ||||
| A11 | ORN | REMOTE GND | Audio remote switch ground | -- | If open: Audio remote switch does not work. If short to ground: No effect on audio remote control. | ||||
| A12(1) | WHT | SCTY- | Security signal from MICU | -- | If open: The security system sets, and does not trip when navigation display unit is removed. If short to ground: The security system sets, and does not trip when navigation display unit is removed. | ||||
| A13 | LT BLU | K-LINE | Detects scan tool signal (serial data) | -- | -- | ||||
| A14 | Not used | Not used | -- | -- | -- | ||||
| A15 | WHT | FL PRE + | Outputs sound signal for left front speaker(s) | -- | If open/short to ground: No sound is heard from left front speaker(s). | ||||
| A16 | LT GRN | FL PRE- | Outputs sound signal for left front speaker(s) | -- | If open/short to ground: No sound is heard from left front speaker(s). | ||||
| A17 | Not used | Not used | -- | -- | -- | ||||
| A18 | Not used | Not used | -- | -- | -- | ||||
| A19 | GRN | FR PRE + | Outputs sound signal for right front speaker(s) | -- | If open/short to ground: No sound is heard from right front speaker(s). | ||||
| A20 | RED | FR PRE- | Outputs sound signal for right front speaker(s) | -- | If open/short to ground: No sound is heard from right front speaker(s). | ||||
| A21 | LT GRN | SW +B | Outputs signal for stereo amplifier and active noise cancellation unit switching ON/OFF | Ignition switch ACC (I): 10.5 V | If open/short: No sound is heard from all speakers. | ||||
| A22 | PNK | REMOTE | Detects control signal from audio remote switch | Ignition switch ON (II) and no button pressed: 2.6 V | If open/short: Audio remote switch does not work. | ||||
| A23 | GRN | VSP | Detects vehicle speed pulse from PCM | Ignition switch ON (II): 0-5 V pulses, 2.5 V average (Depends on vehicle speed) | If open: No vehicle speed pulse. Diagnostic screen Car Status, VSP = 0. If short to ground: No vehicle speed pulse. Diagnostic screen Vehicle Signal, VSP = 0. |
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| A24 | PUR | ACC | Power source for accessories | Ignition switch ACC (I): battery voltage | If open: Display picture goes out. If short to ground: Blows fuse No. C13 (7.5 A) in the driver's under-dash fuse/relay box. |
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