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Home >> Lexus >> 2007 >> LS 460L >> Repair and Diagnosis >> External Pages >> Different car >> Section 589 (Power Supply, Ground & Circuit Elements) >> IPDM E/R (Intelligent Power Distribution Module Engine Room) >> Terminals and Reference Values for IPDM E/R
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Terminals and Reference Values for IPDM E/R

WARNING: This page is about a different car, the 2008 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
TERMINALS AND REFERENCE VALUES FOR IPDM E/R

Terminal Wire color Signal name Signal input/output Measuring condition Reference value (Approx.)
Ignition switch Operation or condition
1 R Battery power supply Input OFF - Battery voltage
2 B/Y Battery power supply Input OFF - Battery voltage
3 B/W Starter motor Output START - Battery voltage
4 B/R Ignition switch Input - OFF or ACC or ON 0V
START Battery voltage
5 W Rear window defogger Output - - Battery voltage
6 L Battery power supply (Rear window defogger) Output - - Battery voltage
7 B/W Ignition switch supplied power Input - OFF or ACC 0V
ON or START Battery voltage
8 L Cooling fan motor low 1 Input - Ignition switch ON or START, with engine coolant temperature above 100°C (212°F) or with air conditioner switch : ON 0V
Ignition switch OFF or ACC, with engine coolant temperature below 100°C (212°F) or with air conditioner switch : OFF Battery voltage
10 L/B Cooling fan motor high 2 Output - Ignition switch ON or START, with engine coolant temperature 105°C (221°F) or higher with air conditioner switch : ON Battery voltage
Ignition switch ON or START, with engine coolant temperature between 95°C (203°F) and 99°C (210°F) or with air conditioner switch : OFF Less than battery voltage
11 R Cooling fan motor high 1 Input - Ignition switch ON or START, with engine coolant temperature 105°C (221°F) or higher with air conditioner switch : ON 0V
Ignition switch OFF or ACC, with engine coolant temperature 94°C (201°F) or less or with air conditioner switch : OFF Battery voltage
Ignition switch ON or START with engine coolant temperature between 95°C (203°F) and 99°C (210°F) or with air conditioner switch : OFF Less than battery voltage
12 R Cooling fan motor ground 2 Input - Ignition switch ON or START, with engine coolant temperature between 95°C (203°F) and 99°C (210°F) or with air conditioner switch : OFF Less than battery voltage
Ignition switch OFF or ACC, or with engine coolant temperature below 95°C (203°F) or with engine coolant temperature above 99°C (210°F) but below 105°C (221°F) or with air conditioner switch : OFF Battery voltage
Ignition switch ON or START, with engine coolant temperature 105°C (221°F) or higher with air conditioner switch : ON 0V
13 R/Y Cooling fan motor low 2 Output - Ignition switch ON or START, with engine coolant temperature above 100°C (212°F) or with air conditioner switch : ON Battery voltage
Ignition switch OFF or ACC, with engine coolant temperature below 100°C (212°F) or with air conditioner switch : OFF 0V
14 L/B Cooling fan motor ground Output - Ignition switch ON or START, with engine coolant temperature between 95°C (203°F) and 99°C (210°F) or with air conditioner switch : OFF Less than battery voltage
Ignition switch ON or START, with engine coolant temperature 105°C (221°F) or higher with air conditioner switch : ON 0V
15 G Battery power supply Input - - Battery voltage
16 B Ground Input - - 0V
17 R ECM Relay Output - Ignition switch ON or START Battery voltage
18 R/G ECM relay Output - Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
20 R/Y RH Low beam headlamp Output - Lighting switch in 2nd position Battery voltage
21 L Wiper low speed signal Output ON or START Wiper switch OFF 0V
LO Battery voltage
22 R/L Rear parking, license plate, and tail lamp Output - Lighting switch 1ST position OFF 0V
ON Battery voltage
23 W/L RH Cornering lamp Output - Lighting switch ON or AUTO and turn signal switch in the RIGHT position Battery voltage
24 G Ignition 1 Output - Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
25 P Ignition 1 Output - Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
26 P Ignition 1 Output - Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
27 L/W RH High beam headlamp Output - Lighting switch in 2nd position and placed in HIGH or PASS position Battery voltage
28 G LH High beam headlamp Output - Lighting switch in 2nd position and placed in HIGH or PASS position Battery voltage
30 L LH Low beam headlamp Output - Lighting switch in 2nd position Battery voltage
31 L/B Wiper high speed signal Output ON or START Wiper switch OF 0V
HI Battery voltage
32 L/Y Wiper auto stop signal Input ON or START Wipers not in park position Battery voltage
Wipers in park position 0V
33 Y/B A/C compressor Output ON or START A/C switch or auto A/C request ON Battery voltage
A/C switch or auto A/C request OFF 0V
34 WG LH Cornering lamp Output - Lighting switch ON or AUTO and turn signal switch in the LEFT position Battery voltage
36 W/G Front fog lamp (RH) Output ON or START Lighting switch must be in the 2ND position or AUTO position (LOW beam is ON) and the front fog lamp switch OFF 0V
ON Battery voltage
37 W/R Front fog lamp (LH) Output ON or START Lighting switch must be in the 2ND position or AUTO position (LOW beam is ON) and the front fog lamp switch OFF 0V
ON Battery voltage
38 B Ground Input - - 0V
39 B/Y Fuel pump Output - Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
40 B/O Fuel pump relay control Input - Ignition switch ON or START 0V
Ignition switch OFF or ACC Battery voltage
41 G Battery power supply Output - - Battery voltage
42 R Throttle control motor relay Output - Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
43 GR Ignition 1 Output - Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
44 Y/R Ignition 1 Output - Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
46 W/B ECM relay control Input - Ignition switch ON or START 0V
Ignition switch OFF or ACC Battery voltage
47 O Throttle control motor relay control Input - Ignition switch ON or START 0V
Ignition switch OFF or ACC Battery voltage
48 L CAN-H - ON - -
49 P CAN-L - ON - -
50 B Ground Input - - 0V
51 G/W Horn relay control Input - Horn switch : PUSHED or when a door is locked or unlocked via the keyfob 0V
Horn switch: RELEASED or with no door lock feature activated via the keyfob Battery voltage
52 G/R Rear window defogger relay control Input ON or START Defogger Switch: ON 0V
Defogger Switch: OFF Battery voltage
53 G/R Starter relay (inhibit switch) Input ON or START Selector lever in "P" or "N" Battery voltage
Selector lever any other position 0V
57 P/L Oil pressure switch Input ON or START - Battery voltage
60 B Ground Input - - 0V