Terminals and Reference Values for IPDM E/R
WARNING: This page is about a different car, the 2008 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
TERMINALS AND REFERENCE VALUES CHART
| 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 relay | Output | - | - | Battery voltage | |
| 6 | L | Rear window defogger relay | Output | - | - | Battery voltage | |
| 7 | B/R | Ignition switch supplied power | Input | - | OFF or ACC | 0V | |
| ON or START | Battery voltage | ||||||
| 8 | R | Cooling fan motor low 1 | Input | Conditions met for cooling fan operation in HIGH | 0V | ||
| Cooling fan operation OFF-LOW-MID | Battery voltage | ||||||
| 10 | L | Cooling fan motor high 2 | Output | - | Conditions met for cooling fan operation in MID-HIGH | Battery voltage | |
| Cooling fan operation OFF-LOW | 0V | ||||||
| 11 | L/B | Cooling fan motor high 1 | Input | - | Conditions met for cooling fan operation in MID-HIGH | 0V | |
| Cooling fan operation OFF-LOW | Less than battery voltage | ||||||
| 12 | L/B | Cooling fan motor ground 2 | Input | - | Conditions met for cooling fan operation in LOW | Battery voltage | |
| Cooling fan operation OFF-MID-HIGH | 0V | ||||||
| 13 | R/W | Cooling fan motor low 2 | Output | Conditions met for cooling fan operation in HIGH | Battery voltage | ||
| Cooling fan operation OFF-LOW-MID | 0V | ||||||
| 14 | L | Cooling fan motor ground | Output | - | Conditions met for cooling fan operation in LOW | Less than battery voltage | |
| Conditions met for cooling fan operation in OFF-MID-HIGH | 0V | ||||||
| 15 | W/L | Battery power supply | Input | - | - | Battery voltage | |
| 16 | B | Ground | Input | - | - | 0V | |
| 17 | R | ECM Relay | Output | - | Ignition switch ON or START | Battery voltage | |
| Ignition switch OFF or ACC | 0V | ||||||
| 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 or auto light system active | Battery voltage | |
| 21 | L | Wiper low speed signal | Output | ON or START | Wiper switch | OFF-HIGH | 0V |
| LOW-INT operation | Battery voltage | ||||||
| 22 | R/L | Rear parking, license plate, and tail lamp | Output | - | Lighting switch in 2nd position or auto light system active | 0V | |
| ON | Battery voltage | ||||||
| 23 | L/O | RH Cornering lamp | Output | ON or START | Lighting switch ON or auto light system active and turn signal switch in the RIGHT position | Battery voltage | |
| 26 | Y | TCM ignition supply | 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 or auto light system active and also in HIGH or PASS position | Battery voltage | |
| 28 | G | LH High beam headlamp | Output | - | Lighting switch in 2nd position or auto light system active and placed in HIGH or PASS position | Battery voltage | |
| 30 | L | LH Low beam headlamp | Output | - | Lighting switch in 2nd position or auto light system active | Battery voltage | |
| 31 | L/B | Wiper high speed signal | Output | ON or START | Wiper switch | OFF-LOW-INT | 0V |
| HIGH | 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 | O/L | LH Cornering lamp | Output | ON or START | Lighting switch ON or auto light system active and turn signal switch in the LEFT position | Battery voltage | |
| 36 | W/R | Front fog lamp (RH) | Output | ON or START | Lighting switch in 2ND position or auto light system active and combination switch in LOW position and the front fog lamp switch | OFF | 0V |
| ON | Battery voltage | ||||||
| 37 | W/R | Front fog lamp (LH) | Output | ON or START | Lighting switch in 2ND position or auto light system active and combination switch in LOW position 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 and ECM control conditions met | 0V | |
| Ignition switch OFF or ACC | Battery voltage | ||||||
| 41 | W/L | Battery power supply | Output | - | - | Battery voltage | |
| 42 | R | Throttle control motor relay | Output | - | Ignition switch ON or START and ECM control conditions met | Battery voltage | |
| Ignition switch OFF or ACC | 0V | ||||||
| 43 | GR | ABS unit ignition supply | Output | - | Ignition switch ON or START | Battery voltage | |
| Ignition switch OFF or ACC | 0V | ||||||
| 44 | R/W | Washer motor ignition supply | 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 and ECM control conditions met | 0V | |
| Ignition switch OFF or ACC | Battery voltage | ||||||
| 47 | O | Throttle control motor relay control | Input | - | Ignition switch ON or START and ECM control conditions met | 0V | |
| Ignition switch OFF or ACC | Battery voltage | ||||||
| 48 | L | CAN-H | - | - | - | - | |
| 49 | P | CAN-L | - | - | - | - | |
| 50 | B | Ground | Input | - | - | 0V | |
| 51 | G/W | Horn relay control | Output | - | Horn or horn chirp request received over CAN | 0V | |
| No request message or network not functioning | Battery voltage | ||||||
| 52 | G/R | Rear window defogger relay control | Input | ON or START | Rear window defogger switch: ON | 0V | |
| Rear window defogger switch: OFF | Battery voltage | ||||||
| 53 | G | 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 | |