Instrument Cluster / Carrier: Description and Operation
System DescriptionControl of the illumination lamps operation is dependent upon the position of the lighting switch (combination switch). When the lighting switch is placed in the 1ST or 2ND position (or if the auto light system is activated) the BCM (body control module) receives input signal requesting the illumination lamps to illuminate. This input signal is communicated to the IPDM E/R (intelligent power distribution module engine room) across the CAN communication lines. The CPU (central processing unit) of the IPDM E/R controls the tail lamp relay coil. This relay, when energized, directs power to the illumination lamps, which then illuminate.
Power is supplied at all times
- through 15 A fuse (No. 41, located in the IPDM E/R)
- to tail lamp relay, located in the IPDM E/R, and
- through 50 A fusible link (letter f, located in the fuse and fusible link box)
- to BCM terminal 55, and
- through 10 A fuse [No.21, located in fuse block (J/B)]
- to BCM terminal 42, and
- through 15 A fuse (No. 34, located in the IPDM E/R)
- to the CPU in the IPDM E/R, and
- through 10 A fuse [No.19, located in fuse block (J/B)]
- to combination meter terminal 24, and
- to ignition relay, (located in the IPDM E/R), and
- through BCM terminal 54 (with front only power window anti-pinch system)
- to front power window switch RH terminal 10, and
- through BCM terminal 54 (with front and rear power window anti-pinch system)
- to front power window switch RH terminal 10
- to rear power window switch (LH and RH) terminal 10, and
- through BCM terminal 53 (with front only power window anti-pinch system)
- to front power window switch LH terminal 10
- to rear power window switch (LH and RH) terminal 6, and
- through BCM terminal 53 (with front and rear power window anti-pinch system)
- to front power window switch LH terminal 10.
With the ignition switch in the ON or START position, power is supplied
- through 10 A fuse [No. 1, located in the fuse block (J/B)]
- to BCM terminal 38, and
- to ignition relay, located in the IPDM E/R, and
- through 10 A fuse [No. 14, located in the fuse block (J/B)]
- to combination meter terminal 23.
With the ignition switch in the ACC or ON position, power is supplied
- through 10 A fuse [No. 6, located in the fuse block (J/B)]
- to BCM terminal 11.
Ground is supplied
- to BCM terminal 52
- to combination meter terminals 10, 11 and 12
- through grounds M57, M61, and M79, and
- to IPDM E/R terminals 38 and 60
- through grounds E15 and E24.
ILLUMINATION OPERATION BY LIGHTING SWITCH
With the lighting switch in the 1ST or 2ND position (or if the auto light system is activated), the BCM receives input signal requesting the illumination lamps to illuminate. This input signal is communicated to the IPDM E/R across the CAN communication lines. The CPU of the IPDM E/R controls the tail lamp relay coil which, when energized, directs power
- through IPDM E/R terminal 22
- to illumination control switch terminal 1
- to glove box lamp terminal +
- to A/T device (illumination) terminal +
- to TCS ON/OFF switch (illumination) terminal 3 (TCS models)
- to VDC ON/OFF switch (illumination) terminal 3 (with VDC)
- to hazard switch (illumination) terminal 3
- to front heated seat switch LH (illumination) terminal 5 (with heated seat)
- to front heated seat switch RH (illumination) terminal 5 (with heated seat)
- to AV switch (illumination) terminal 3
- to unified meter and A/C amp. terminal 23
- to audio unit terminal 8
- to heated steering wheel switch terminal 3 (with heated steering wheel)
- to interior room lamp (console box illumination) terminal 2
- to rear sunshade switch (front and rear) terminal 5 (with rear sunshade)
- to rear heated seat switch (LH and RH) terminal 5 (with rear heated seats).
Illumination control
- through illumination control switch terminal 2
- to A/T device (illumination) terminal -
- to TCS ON/OFF switch (illumination) terminal 4 (TCS models)
- to VDC ON/OFF switch (illumination) terminal 4 (with VDC)
- to audio unit terminal 7
- to hazard switch (illumination) terminal 4
- to front heated seat switch LH (illumination) terminal 6 (with heated seat)
- to front heated seat switch RH (illumination) terminal 6 (with heated seat)
- to AV switch (illumination) terminal 4
- to heated steering wheel switch (illumination) terminal 4 (with heated steering wheel)
- to interior room lamp (console box illumination) terminal 3
- to rear sunshade switch (front and rear) terminal 6 (with rear sunshade)
- to rear heated seat switch (LH and RH) terminal 6 (with rear heated seats)
- to unified meter and A/C amp. terminal 31.
Ground is supplied
- to illumination control switch terminal 3
- to glove box lamp terminal -
- to front power window switch LH terminal 17
- to front power window switch RH terminal 11
- through grounds M57, M61 and M79, and
- to rear power window switch LH (illumination) terminal 7 (with front only power window anti-pinch system) or terminal 11 (with front and rear power window anti-pinch system)
- through grounds B7 and B19, an
- to rear power window switch RH (illumination) terminal 7 (with front only power window anti-pinch system) or terminal 11 (with front and rear power window anti-pinch system)
- through grounds B117 and B132.
With power and ground supplied, illumination lamps illuminate.
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 1ST or 2ND position (or if auto light system is activated) and the ignition switch is turned from ON or ACC to OFF, the battery saver control function is activated. Under this condition, the illumination lamps remain illuminated for 5 minutes, then the illumination lamps are turned off.
When the lighting switch is turned from OFF to 1ST or 2ND position (or if auto light system is activated) after illumination lamps are turned off by the battery saver control, the illumination lamps illuminate again.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
CAN Communication System Description
Refer to "INFORMATION BUS".