13580-87L00 Suzuki SENSOR ASSY, SHIFT POSITION

Table 1
Diagnostic Codes Table
Description Conditions which Generate this Code System Response
545-5 Ether Start Relay open/short to +batt The engine's Electronic Control Module (ECM) detects an open circuit and/or a short circuit to the +Battery terminal at the output to the ether start relay.
The ECM has been powered for at least two seconds. The code is logged.
Ether injection is disabled.
545-6 Ether Start Relay short to ground The ECM detects a short circuit to ground at the output to the ether start relay.
The ECM has been powered for at least two seconds.
546-5 Ether Hold Relay open/short to ground The ECM detects an open circuit and/or a short circuit to ground at the output to the ether hold relay.
The ECM has been powered for at least two seconds. The code is logged.
Ether injection is disabled.
546-6 Ether Hold Relay short to +batt The ECM detects a short circuit to the +Battery at the output to the ether hold relay.
The ECM has been powered for at least two seconds. The engine uses an ether system to improve starting in cold temperatures. The duration of the ether cycle is based on the engine coolant temperature. The ECM, which controls the ether system, uses the engine coolant temperature sensor to detect engine temperature. The ECM determines if ether should be injected by monitoring actual engine rpm and the engine temperature. The ECM will activate the ether solenoid if the engine coolant temperature is below a set temperature and the engine rpm is below a certain level. The ether will activate for a minimum of 15 seconds at 30 °C (86 °F) up to a maximum of 130 seconds at −50 °C (−58 °F). The automatic ether injection system is disabled whenever engine rpm exceeds 400 rpm or the engine coolant temperature exceeds 30 °C (86 °F).The ether injection system can also be operated in manual mode. The ether system is switched into manual mode whenever the starting aid switch is depressed. Manual mode allows ether to be injected whenever the coolant temperature is less than 30 °C (86 °F) and engine rpm is greater than 50 rpm. The manual mode will allow ether to be injected for a maximum of 130 seconds when the switch is toggled.Two driver outputs from the ECM are used to activate the ether injection system. A sourcing driver provides the voltage to the coil of the ether start relay. The other terminal of the ether start relay is connected to the digital return. A sinking driver connects to the coil of the ether hold relay. The drivers and the relays are used to provide a high initial voltage that will actuate the ether solenoids. The resistor and diode assembly provides a lower voltage in order to keep the ether solenoid activated. The solenoids will be damaged if battery voltage is applied continuously.
Illustration 1 g01522234
Typical schematic
Test Step 1. Inspect Electrical Connectors and Wiring
Turn the keyswitch to the OFF position.
Illustration 2 g01234146
Location of ECM connectors
Thoroughly inspect the ECM connectors J1/P1 and J2/P2. Inspect all of the other connectors. Refer to Troubleshooting, "Electrical Connectors - Inspect" for details.
Illustration 3 g01571204
P1 ECM connector
(P1-5) Digital return
(P1-20) Ether request
Illustration 4 g01571207
P2 ECM connector
(P2-10) Ether hold relay
(P2-31) Ether start relay
Illustration 5 g01149844
Terminal locations for the ether start relay and for the ether hold relay
Perform a 45 N (10 lb) pull test on each of the wires in the ECM connector that are associated with the circuit.
Check the ECM connector (allen head screw) for the proper torque. Refer to Troubleshooting, "Electrical Connectors - Inspect" for details.
Check the harness and the wiring for abrasion and for pinch points. Expected Result:All connectors, pins, and sockets are completely coupled and/or inserted. The harness and wiring are free of corrosion, of abrasion, and of pinch points.Results:
OK - The harness and wiring are OK. Proceed to Test Step 2.
Not OK - There is a problem in the connectors and/or wiring.Repair: Repair the connectors or wiring and/or replace the connectors or wiring. Ensure that all of the seals are properly in place and ensure that the connectors are completely coupled.Verify that the repair eliminates the problem.STOPTest Step 2. Check the Ether Canisters
Turn the keyswitch to the OFF position.
Remove the ether canister(s) from the ether solenoid(s). Verify that the ether canister is full. Expected Result:The ether canister is full.Results:
OK - The ether canister is full. Proceed to Test Step 3.
Not OK - An ether canister is empty.Repair: Replace the empty ether canister with a full ether canister. Verify that the system is operating correctly.STOPTest Step 3. Check for Active Diagnostic CodesNote: Remove the ether canister(s) from the ether solenoid(s) before proceeding with the following test steps.
Connect Caterpillar Electronic Technician (ET) to the cab service tool connector.
Turn the keyswitch to the ON position.
Toggle the starting aid switch. Observe the parameter for the starting aid switch on Cat ET.
Determine if a -5 or -6 diagnostic code is active or logged. Expected Result:The parameter for the starting aid switch displays "ON" while the starting aid switch is toggled. The parameter for the starting aid switch displays "OFF" when the starting aid switch is released. An active diagnostic code is present or a logged diagnostic code is present.Results:
OK - Active Code - The parameter for the starting aid switch displays "ON" while the starting aid switch is toggled. The parameter for the starting aid switch displays "OFF" when the starting aid switch is released. Active diagnostics are displayed. Make a note of the active diagnostic code. Proceed to Test Step 4.
OK - Logged Code - The parameter for the starting aid switch displays "ON" while the starting aid switch is toggled. The parameter for the starting aid switch displays "OFF" when the starting aid switch is released. Logged diagnostics are displayed. Repair: Check for an intermittent short or for an open in the wiring or in the connectors. Refer to Troubleshooting, "Electrical Connectors - Inspect". Repair any suspect connectors or wiring and/or replace the connectors