Audio System & Visual System: Overview Toyota Prius II рестайлинг

DIAGNOSIS DISPLAY DETAILED DESCRIPTION

HINT

1. This section contains a detailed description of displays within diagnostic mode.
2. Illustrations may differ from the actual vehicle depending on the device settings and options. Therefore, some detailed areas may not be exactly the same as on the actual vehicle.

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1. SYSTEM CHECK System Check Mode Screen Device Names and Hardware Address/*1 HINT: Registered device names are displayed. If a device name is unknown to the system, its physical address is shown instead. DEVICE NAMES AND HARDWARE ADDRESS Address No. Name Address No. Name 110 EMV 120 AVX 128 1DIN TV 140 AVN 144 G-BOOK 178 NAVI 17C MONET 190 AUDIO H/U 1AC CAMERA-C 1B0 Rr-TV 1C0 Rr-CONT 19D BT-HF 1C4 PANEL 1C6 G/W 1C8 FM-M-LCD 1D8 CONT-SW 1EC Body 118 EMVN 1F1 XM 1F2 SIRIUS 230 TV-TUNER 240 CD-CH2 250 DVD-CH 280 CAMERA 360 CD-CH1 3A0 MD-CH 17D TEL 440 DSP-AMP 530 ETC 1F6 RSE 1A0 DVD-P 1D6 CLOCK 238 DTV 480 AMP Check Result/*2 HINT: Result codes for all devices are displayed. RESULT CODES Result Meaning Action OK Device did not respond with DTC (excluding communication DTCs from AVC-LAN). - EXCH Device responds with "replace" type DTC. Look up DTC in "Unit Check Mode" and replace device. CHEK Device responds with "check" type DTC. Look up DTC in "Unit Check Mode". NCON Device was previously present, but does not respond in diagnostic mode. Check power supply wire harness of device. Check AVC-LAN of device. Old Device responds with "old" type DTC. Look up DTC in "Unit Check Mode". NRES Device responds in diagnostic mode, but gives no DTC information. Check power supply wire harness of device. Check AVC-LAN of device. Code Clear/*3 Present DTCs are cleared. Press the "Code CLR" switch for 3 seconds. Memory Clear/*4 Present and past DTCs and registered connected device names are cleared. Press the "Memory CLR" switch for 3 seconds. Diagnosis MENU Screen HINT: Each item is grayed out or not displayed based on the device settings. Unit Check Mode Screen Screen description: SCREEN DESCRIPTION Display Contents Device name/*1 Target device Segment/*2 Target device logical address DTC/*3 DTC (Diagnostic Trouble Code) Timestamp/*4 Time and date of past DTCs are displayed (Year is displayed in 2-digit format). Present Code/*5 DTCs output at service check are displayed. Past Code/*6 Diagnostic memory results and recorded DTCs are displayed. Diagnosis Clear Switch/*7 Pushing this switch for 3 seconds clears diagnostic memory data of target device (both response to diagnostic system check result and displayed data are cleared). LAN Monitor (Original) Screen Check Result/*1 HINT: The check results of all the devices are displayed. RESULTS Result Meaning Action No Err (OK) There are no communication DTCs. - CHEK Device responds with "check" type DTC. Look up DTC in "Unit Check Mode". NCON Device was previously present, but does not respond in diagnostic mode. Check power supply wire harness of device. Check AVC-LAN of device. Old Device responds with "old" type DTC. Look up DTC in "Unit Check Mode". NRES Device responds in diagnostic mode, but gives no DTC information. Check power supply wire harness of device. Check AVC-LAN of device. LAN Monitor (Individual) Screen Screen description: SCREEN DESCRIPTION Display Contents Device name/*1 Target device Segment/*2 Target logical address DTC/*3 DTC (Diagnostic Trouble Code) Sub-code (device address)/*4 Physical address stored with DTC (If there is no address, nothing is displayed). Connection check No./*5 Connection check number stored with DTC DTC occurrence/*6 Number of times same DTC has been recorded Diagnosis Clear Switch/*7 Pushing this switch for 3 seconds clears diagnostic memory data of target device (both response to diagnostic system check result and displayed data are cleared).
2. DISPLAY CHECK Vehicle Signal Check Mode Screen Screen description: SCREEN DESCRIPTION Name Contents Battery Battery voltage is displayed. PKB Parking brake ON / OFF state is displayed. REV Reverse signal ON / OFF state is displayed. IG Power switch ON / OFF state is displayed. ADIM/TCAN Brightness state DIM (with) / BRIGHT (without) is displayed. TAIL TAIL signal (Light control switch) ON / OFF state is displayed. SPEED Vehicle speed is displayed in km/h. HINT: Only items sending a vehicle signal will be displayed. This screen is updated once per second when input signals to the vehicle are changed. Microphone & Voice Recognition Check Screen HINT: Depending on the type of audio system, this menu may not be present. Screen description: SCREEN DESCRIPTION Name Contents Microphone input level meter/*1 Monitors microphone input level every 100 ms and displays results in 8 different levels. Recording switch/*2 Starts recording. Stop switch/*3 Stops recording. Play switch/*4 Plays recorded voice. Recording indicator/*5 Comes on while recording. HINT: The microphone input function is on at all times when this screen is displayed. While recording or playing, the switches other than the stop switch cannot be pushed. When no voice is recorded, the play switch cannot be pushed. Recording will stop after 5 seconds or by pushing the stop switch.

DESCRIPTION

DTC DETECTION CONDITION

DTC DETECTION CONDITION

Note. Before starting troubleshooting, be sure to clear DTCs to erase codes stored due to the reasons described in the HINT above. Then, check for DTCs and troubleshoot according to the output DTCs. The multi-display is the master unit. Be sure to clear and recheck DTCs after the inspection is completed to confirm that no DTCs are output.

DTC DETECTION CONDITION

Note. Before starting troubleshooting, be sure to clear DTCs to erase codes stored due to the reasons described in the HINT above. Then, check for DTCs and troubleshoot according to the output DTCs. The multi-display is the master unit. Be sure to clear and recheck DTCs after the inspection is completed to confirm that no DTCs are output.

DTC DETECTION CONDITION

Note. The multi-display is the master unit. Be sure to clear and recheck DTCs after the inspection is completed to confirm that no DTCs are output.

DTC DETECTION CONDITION

Note. Before starting troubleshooting, be sure to clear DTCs to erase codes stored due to the reasons described in the HINT above. Then, check for DTCs and troubleshoot according to the output DTCs. The multi-display is the master unit. Be sure to clear and recheck DTCs after the inspection is completed to confirm that no DTCs are output.

DTC DETECTION CONDITION

Note. Before starting troubleshooting, be sure to clear DTCs to erase codes stored due to the reasons described in the HINT above. Then, check for DTCs and troubleshoot according to the output DTCs. The multi-display is the master unit. Be sure to clear and recheck DTCs after the inspection is completed to confirm that no DTCs are output.

DTC DETECTION CONDITION

HINT

Even if no fault is present, these trouble codes may be stored depending on the battery condition or hybrid system start voltage.

DTC DETECTION CONDITION

DTC DETECTION CONDITION

DTC DETECTION CONDITION

DTC DETECTION CONDITION

DTC DETECTION CONDITION

DTC DETECTION CONDITION

DTC DETECTION CONDITION

DTC DETECTION CONDITION

DTC DETECTION CONDITION

DTC DETECTION CONDITION

DTC DETECTION CONDITION

DTC DETECTION CONDITION

DTC DETECTION CONDITION

DTC DETECTION CONDITION

DTC DETECTION CONDITION

This circuit has a fail-safe function.

1. When a short in the speaker circuit is detected, all sound outputs are stopped.

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This circuit is necessary for the ASL (Auto Sound Levelizer) built into the radio receiver. Speed signals are received from the combination meter and used for the ASL.

The ASL function automatically adjusts the sound data in order to enable hearing the clear audio even when vehicle noise increases (as vehicle noise increases, the volume is turned up, etc.).

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1. OPERATION OF SPEEDOMETER Drive the vehicle and check if the function of the speedometer on the combination meter is normal. OK: Actual vehicle speed and the speed indicated on the speedometer are the same. HINT: The vehicle speed sensor is functioning normally when the indication on the speedometer is normal. NG: GO TO «METER / GAUGE SYSTEM»(ref-289869-S02475672892008070800000) OK: Go to next step
2. CHECK RADIO RECEIVER (SPD VOLTAGE) Disconnect the R5 receiver connector. Measure the voltage. Jack up either one of the drive wheels. Move the shift lever to the neutral position. Turn the power switch ON (IG). Measure the voltage between terminal SPD of the radio receiver and body ground when the drive wheels are turned slowly. OK: Voltage pulses as shown in the illustration. OK: REPLACE RADIO RECEIVER NG: Go to next step
3. CHECK WIRE HARNESS (COMBINATION METER - RADIO RECEIVER) Disconnect the R5 receiver connector. Disconnect the C10 meter connector. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE Tester Connection Specified Condition R5-3 (SPD) - C10-13 Below 1 ohms NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to next step
4. CHECK WIRE HARNESS (RADIO RECEIVER - BODY GROUND) Disconnect the R5 receiver connector. Measure the resistance of the wire harness side connector. Standard resistance STANDARD RESISTANCE Tester Connection Specified Condition R5-3 (SPD) - Body ground 10 kohms or higher HINT: If the resistance between terminal SPD and body ground is less than 10 kohms, there may be a short in a wire harness, connector, or an ECU that is connected to the SPD signal wire. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: REPLACE RADIO RECEIVER

This circuit sends an operation signal from the steering pad switch to the radio receiver.

If there is an open in the circuit, the audio system cannot be operated using the steering pad switch. If there is a short in the circuit, the same condition as when the switch is continuously depressed occurs. As a result, the radio receiver cannot be operated using the steering pad switch, and also the radio receiver itself cannot function.

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Power is supplied to the radio receiver, multi-display and steering pad switch illumination when the light control switch is in the TAIL or HEAD position.

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1. When the vehicle has a built-in type amplifier, a sound signal is sent from the radio receiver to the speakers via the "6 Speaker System" circuit.
2. When the vehicle has a separate type amplifier, a sound signal from the radio receiver is amplified by the stereo component amplifier and then transmitted to the speaker via the "9 Speaker System".

If there is a short in this circuit, the stereo component amplifier detects it and stops output to the speakers. Thus, sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier or speakers.

The radio receiver sends a sound signal to the stereo component amplifier through this circuit.

The sound signal that has been sent is amplified by the stereo component amplifier, and then is sent to the speakers.

If there is an open or short in the circuit, sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier or speakers.

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1. CHECK WIRE HARNESS (RADIO RECEIVER - STEREO COMPONENT AMPLIFIER) Disconnect the R6 receiver connector. Disconnect the S15 amplifier connector. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE Tester Connection Specified Condition R6-9 (L+) - S15-3 (L+) Below 1 ohms R6-19 (L-) - S15-2 (L-) Below 1 ohms R6-8 (R+) - S15-5 (R+) Below 1 ohms R6-18 (R-) - S15-4 (R-) Below 1 ohms R6-9 (L+) - Body ground 10 kohms or higher R6-19 (L-) - Body ground 10 kohms or higher R6-8 (R+) - Body ground 10 kohms or higher R6-18 (R-) - Body ground 10 kohms or higher R6-10 (SLD) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-289899-S10969391372008070800000)

The stereo jack adapter sends an external device sound signal to the radio receiver through this circuit. The sound signal that has been sent is amplified by the stereo component amplifier, and then is sent to the speakers.

If there is an open or short in the circuit, sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier, radio receiver, or speakers.

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1. CHECK WIRE HARNESS (RADIO RECEIVER - STEREO JACK ADAPTER) Disconnect the R5 receiver connector. Disconnect the S30 adapter connector. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE Tester Connection Specified Condition S30-4 (AUXO) - R5-19 (AUXI) Below 1 ohms S30-3 (ASGN) - R5-16 (ASGN) Below 1 ohms S30-2 (ARO) - R5-15(ARI) Below 1 ohms S30-1 (ALO) - R5-17 (ALI) Below 1 ohms S30-4 (AUXO) - Body ground 10 kohms or higher S30-3 (ASGN) - Body ground 10 kohms or higher S30-2 (ARO) - Body ground 10 kohms or higher S30-1 (ALO) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-289899-S10969391372008070800000)

This circuit sends a signal to the stereo component amplifier to mute noise. As a result, the noise produced by changing the sound source ceases.

If there is an open in the circuit, noise can be heard from the speakers when changing the sound source. If there is a short in the circuit, even though the stereo component amplifier is normal, no sound, or only an extremely small sound can be produced.

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1. CHECK STEREO COMPONENT AMPLIFIER (MUTE VOLTAGE) Measure the voltage of the amplifier. Standard voltage STANDARD VOLTAGE Tester Connection Condition Specified Condition S15-1 (MUTE)-Body ground Turn power switch ON (ACC), Audio system is playing --> Changing mode Above 3.5 V --> Below 1 V OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-289899-S10969391372008070800000) NG: Go to next step
2. CHECK WIRE HARNESS (RADIO RECEIVER - STEREO COMPONENT AMPLIFIER) Disconnect the R6 receiver connector. Disconnect the S15 amplifier connector. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE Tester Connection Specified Condition R6-7 (MUTE) -S15-1 (MUTE) Below 1 ohms R6-7 (MUTE) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to next step
3. REPLACE RADIO RECEIVER Replace the radio receiver with a normal one and check if it operates normally. OK: The radio receiver operates normally. NG: REPLACE STEREO COMPONENT AMPLIFIER OK: END

Each unit of the audio system connected to the AVC-LAN (communication bus) transfers the signal of each switch by communication.

When a short to +B or short to ground occurs in this AVC-LAN, the audio system will not function normally as the communication is discontinued.

This circuit is necessary for the ASL (Auto Sound Levelizer) built into the stereo component amplifier. Speed signals are received from the combination meter and used for the ASL.

The ASL function automatically adjusts the sound data in order to enable hearing the clear audio even when vehicle noise increases (as vehicle noise increases, the volume is turned up, etc.).

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1. CHECK OPERATION OF SPEEDOMETER Drive the vehicle and check if the function of the speedometer on the combination meter is normal. OK: Actual vehicle speed and the speed indicated on the speedometer are the same. HINT: The vehicle speed sensor is functioning normally when the indication on the speedometer is normal. NG: GO TO «METER / GAUGE SYSTEM»(ref-289869-S02475672892008070800000) OK: Go to next step
2. CHECK STEREO COMPONENT AMPLIFIER Disconnect the S15 amplifier connector. Measure the voltage. Jack up either one of the drive wheels. Move the shift lever to the neutral position. Turn the power switch ON (IG). Measure the voltage between terminal 11 (SPD) of the stereo component amplifier and body ground when the drive wheels are turned slowly. OK: Voltage pulses as shown in the illustration. OK: REPLACE STEREO COMPONENT AMPLIFIER NG: Go to next step
3. CHECK WIRE HARNESS (COMBINATION METER - STEREO COMPONENT AMPLIFIER) Disconnect the S15 amplifier connector. Disconnect the C10 meter connector. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE Tester Connection Specified Condition S15-11 (SPD) - C10-13 Below 1 ohms NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to next step
4. CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - BODY GROUND) Disconnect the S15 amplifier connector. Measure the resistance of the wire harness side connector. Standard resistance STANDARD RESISTANCE Tester Connection Specified Condition S15-11 (SPD) - Body ground 10 kohms or higher HINT: If the resistance between terminal 11 (SPD) and body ground is less than 10 kohms, there may be a short in a wire harness, connector, or an ECU that is connected to the SPD signal wire. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: REPLACE STEREO COMPONENT AMPLIFIER

This circuit sends a microphone signal from the microphone to the multi-display. It also supplies power from multi-display to the microphone.

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1. CHECK MULTI-DISPLAY (MACC VOLTAGE) Measure the voltage of the display. Standard voltage STANDARD VOLTAGE Tester Connection Condition Specified Condition M14-4 (MACC) - Body ground Power switch ON (ACC) 10 to 14 V NG: REPLACE MULTI-DISPLAY OK: Go to next step
2. CHECK WIRE HARNESS (MULTI-DISPLAY - OVERHEAD JUNCTION BLOCK) Disconnect the M14 display connector. Disconnect the 03 junction block connector. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE Tester Connection Specified Condition M14-4 (MACC) - 03-7 (ACC) Below 1 ohms M14-2 (MIN+) - 03-8 (MI1+) Below 1 ohms M14-3 (MIN-) - 03-9 (MIC-) Below 1 ohms M14-4 (MACC) - Body ground 10 kohms or higher M14-2 (MIN+) - Body ground 10 kohms or higher M14-3 (MIN-) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-289899-S10969391372008070800000)

This circuit provides power to the radio receiver.

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1. INSPECT FUSE (DOME, ACC) Disconnect the DOME fuse from the engine room junction block. Disconnect the ACC fuse from the driver side junction block. Measure the resistance of the fuses. Standard resistance: Below 1 ohms NG: REPLACE FUSE OK: Go to next step
2. CHECK WIRE HARNESS (RECEIVER - BATTERY AND BODY GROUND) Disconnect the R3*1 or R6*2 receiver connector. HINT: *1: for 6 speaker system *2: for 9 speaker system Measure the resistance of the wire harness side connector. Standard resistance STANDARD RESISTANCE Tester Connection Specified Condition R3-7 (GND) - Body ground*1 Below 1 ohms R6-20 (GND) - Body ground*2 Measure the voltage of the wire harness side connector. Standard voltage STANDARD VOLTAGE Tester Connection Condition Specified Condition R3-4 (+B) - R3-7 (GND)*1 Always 10 to 14 V R6-1 (+B) - R6-20 (GND)*2 R3-3 (ACC) - R3-7 (GND)M Power switch ON (ACC) 10 to 14 V R6-11 (ACC)-R6-20 (GND)*2 NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-289899-S10969391372008070800000)

This circuit provides power to the stereo component amplifier.

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1. INSPECT FUSE (AMP, ACC) Disconnect the AMP fuse from the engine room junction block. Disconnect the ACC fuse from the driver side junction block. Measure the resistance of the fuses. Standard resistance: Below 1 ohms NG: REPLACE FUSE OK: Go to next step
2. CHECK WIRE HARNESS (AMPLIFIER - BATTERY AND BODY GROUND) Disconnect the S14, S15 and S29 amplifier connectors. Measure the resistance of the wire harness side connector. Standard resistance STANDARD RESISTANCE Tester Connection Specified Condition S29-6 (GND) - Body ground Below 1 ohms S29-7 (GND2) - Body ground Below 1 ohms Measure the voltage of the wire harness side connectors. Standard voltage STANDARD VOLTAGE Tester Connection Condition Specified Condition S14-1 (+B) - S29-6 (GND) Always 10 to 14 V S14-5 (+B2) - S29-6 (GND) Always 10 to 14 V S15-12 (ACC) - S29-6 (GND) Power switch ON (ACC) 10 to 14 V NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-289899-S10969391372008070800000)

This circuit provides power to the multi-display.

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1. INSPECT FUSE (ECU-B, ACC) Disconnect the ECU-B and ACC fuses from the driver side junction block. Measure the resistance of the fuses. Standard resistance: Below 1 ohms NG: REPLACE FUSE OK: Go to next step
2. CHECK WIRE HARNESS (MULTI-DISPLAY - BATTERY AND BODY GROUND) Disconnect the M13 connector. Measure the resistance of the wire harness side connector. Standard resistance STANDARD RESISTANCE Tester Connection Specified Condition M13-1 (GND1) - Body ground*1 Below 1 ohms M13-3 (GND1) - Body ground*2 Below 1 ohms Measure the voltage of the wire harness side connector. Standard voltage STANDARD VOLTAGE Tester Connection Condition Specified Condition M13-2 (ACC) - Body ground*1 Power switch ON (ACC) 10 to 14 V M13-3 (+B1) - Body ground*1 Always 10 to 14 V M13-11 (ACC) - Body ground*2 Power switch ON (ACC) 10 to 14 V M13-12 (+B1) - Body ground*2 Always 10 to 14 V HINT: *1: for 4 Connector type *2: for 3 Connector type NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-289899-S10969391372008070800000)

This is the power source circuit to operate the gateway ECU.

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1. INSPECT FUSE (ECU-IG, ACC, ECU-B) Disconnect the ECU-IG, ECU-B and ACC fuses from the driver side junction block. Measure the resistance of the fuses. Standard resistance: Below 1 ohms NG: REPLACE FUSE OK: Go to next step
2. CHECK WIRE HARNESS (GATEWAY ECU - BATTERY AND BODY GROUND) Disconnect the G1 ECU connector. Measure the resistance of the wire harness side connector. Standard resistance STANDARD RESISTANCE Tester connection Specified condition G1-24 (GND) - Body ground Below 1 ohms Measure the voltage of the wire harness side connector. Standard voltage STANDARD VOLTAGE Tester connection Condition Specified condition G1-10 (BATT) - G1-24 (GND) Always 10 to 14 V G1-2 (ACC) - G1-24 (GND) Power switch ON (ACC) 10 to 14 V G1-1 (IG) - G1-24 (GND) Power switch ON (IG) 10 to 14 V NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-289899-S10969391372008070800000)

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1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
2. REMOVE NO. 3 INSTRUMENT PANEL REGISTER ASSEMBLY (See «REMOVAL»(ref-289871-S38188274822008070800000) )
3. REMOVE NO. 4 INSTRUMENT PANEL REGISTER ASSEMBLY (See «REMOVAL»(ref-289871-S38188274822008070800000) )
4. REMOVE INSTRUMENT CLUSTER FINISH PANEL ASSEMBLY CENTER (See «REMOVAL»(ref-289871-S24621283232008070800000) )
5. REMOVE MULTI-DISPLAY ASSEMBLY (See «REMOVAL»(ref-289889-S06322871382008070800000) )
6. REMOVE RADIO RECEIVER WITH BRACKET Remove the 4 screws. Disconnect the connector and remove the radio receiver w/ bracket.
7. REMOVE NO. 1 RADIO BRACKET Remove the 6 screws and No. 1 radio bracket.
8. REMOVE NO. 2 RADIO BRACKET Remove the 6 screws and No. 2 radio bracket.

See also:
• REMOVAL