Integration Relay: Inspection
- INSPECT INTEGRATION RELAY NOTE:
- Some relays are built into the integration relay (unit: A). The integration relay cannot be disassembled. If there is a malfunction in the circuit of the integration relay, replace the integration relay.
- The internal circuit of the integration relay is as shown in the illustration. Inspect the integration relay using the following procedures.
- Measure the resistance of the C/OPN relay.
- Connect the battery's positive (+) lead to terminal 2A-8 and negative (-) lead to terminal 2B-33. Using an ohmmeter, check resistance between the terminals when battery voltage is applied between the terminals.
Standard resistance
TERMINALS RESISTANCE SPECIFICATIONSTester Connection Specified Condition 2C-2 - 2B-7 Below 1 Ω 2C-1 - 2B-8 10 kΩ or higher - Connect the battery's positive (+) lead to terminals 2A-8 and 2C-1, and negative (-) lead to terminal 2B-3 and 2B-7. Using an ohmmeter, check that there is resistance between terminals 2C-1 and 2B-8 when battery voltage is applied between the terminals.
Standard resistance
TERMINALS RESISTANCE SPECIFICATIONSTester Connection Specified Condition 2C-1 - 2B-8 Below 1 Ω (when battery voltage is applied to terminals 2A-8 and 2B-3, and 2C-1 and 2B-7)
- Connect the battery's positive (+) lead to terminal 2A-8 and negative (-) lead to terminal 2B-33. Using an ohmmeter, check resistance between the terminals when battery voltage is applied between the terminals.
- Measure the resistance of the EFI MAIN relay.
- Remove the EFI fuse. Using an ohmmeter, measure the resistance between the terminals.
Standard resistance
EFI MAIN RELAY TERMINALS RESISTANCE SPECIFICATIONSTester Connection Specified Condition 2A-6 - 2A-7 Below 1 Ω EFI fuse terminal 2 - 2A-8 10 kΩ or higher - Connect the battery's positive (+) lead to terminal 2A-6 and negative (-) lead to terminal 2A-7. Using an ohmmeter, check that there is resistance between EFI fuse terminal 2 and terminal 2A-8 when battery voltage is applied between the terminals.
Standard resistance
EFI MAIN RELAY TERMINALS RESISTANCE SPECIFICATIONSTester Connection Specified Condition EFI fuse terminal 2 - terminal 2A-8 Below 1 Ω (when battery voltage is applied to terminals 2A-6 and 2A-7)
- Remove the EFI fuse. Using an ohmmeter, measure the resistance between the terminals.
- Measure the resistance of the EFI NO. 2 relay.
- Using an ohmmeter, measure the resistance between the terminals.
Standard resistance
TERMINALS RESISTANCE SPECIFICATIONSTester Connection Specified Condition 2B-3 - 2A-8 Below 1 Ω 2B-7 - 2C-1 10 kΩ or higher - Connect the battery's positive (+) lead to terminal 2A-8 and negative (-) lead to terminal 2B-3. Using an ohmmeter, check that there is resistance between terminals 2B-7 and 2C-1 when battery voltage is applied between the terminals.
Standard resistance
TERMINALS RESISTANCE SPECIFICATIONSTester Connection Specified Condition 2B-7 - 2C-1 Below 1 Ω (when battery voltage is applied to terminals 2B-3 and 2A-8)
- Using an ohmmeter, measure the resistance between the terminals.
- Measure the resistance of the EFI INJ relay.
- Remove the INJ fuse. Using an ohmmeter, measure the resistance between the terminals.
Standard resistance
EFI INJ RELAY TERMINALS RESISTANCE SPECIFICATIONSTester Connection Specified Condition 2A-1 - 2A-3 Below 1 Ω INJ fuse terminal 2 - C4 10 kΩ or higher - Connect the battery's positive (+) lead to terminal 2A-1 and negative (-) lead to terminal 2A-3. Using an ohmmeter, check that there is resistance between INJ fuse terminals 2 and terminal 2A-4 when battery voltage is applied between the terminals.
Standard resistance
EFI INJ RELAY TERMINALS RESISTANCE SPECIFICATIONSTester Connection Specified condition INJ fuse terminal 2 - terminal 2A-4 Below 1 Ω (when battery voltage is applied to terminals 2A-1 and 2A-3)
- Remove the INJ fuse. Using an ohmmeter, measure the resistance between the terminals.